Global & Disaster Medicine

Archive for June, 2019

6/12/2016: A gunman forces his way into the Pulse nightclub killing 49 and wounding dozens more.

HxC


Vayu approaching west Indian coast; 300,000 evacuated


DRC: In the first five months of 2019, more than 1,500 measles-related deaths were officially recorded

MSF

“……Alongside a tough battle against Ebola, the Democratic Republic of the Congo (DRC) health ministry yesterday declared a measles outbreak, spanning 23 of the country’s 26 provinces and piling up 87,000 suspected cases since the first of the year.…”


First case of Ebola hits Uganda


6/11/1955: A racing car in Le Mans, France, goes out of control and crashes into stands filled with spectators, killing 82 people.

HxC


4.0M quake east of Cleveland

DYFI intensity map

M 4.0 – 4km NNW of Eastlake, Ohio

  • 2019-06-10 14:50:44 (UTC)
  • 41.695°N 81.466°W
  • 5.0 km depth

Tectonics

Tectonic Summary

Earthquakes in the Northeast Ohio Seismic Zone

The Northeast Ohio seismic zone has had moderately frequent earthquakes at least since the first one was reported in 1823. The largest earthquake (magnitude 4.8) caused damage in 1986 in northeasternmost Ohio, and the most recent damaging shock (magnitude 4.5) occurred in 1998 at the seismic zone’s eastern edge in northwestern Pennsylvania. Earthquakes too small to cause damage are felt two or three times per decade.

Earthquakes in the central and eastern U.S., although less frequent than in the western U.S., are typically felt over a much broader region. East of the Rockies, an earthquake can be felt over an area as much as ten times larger than a similar magnitude earthquake on the west coast. A magnitude 4.0 eastern U.S. earthquake typically can be felt at many places as far as 100 km (60 mi) from where it occurred, and it infrequently causes damage near its source. A magnitude 5.5 eastern U.S. earthquake usually can be felt as far as 500 km (300 mi) from where it occurred, and sometimes causes damage as far away as 40 km (25 mi).

Faults

Earthquakes everywhere occur on faults within bedrock, usually miles deep. Most of the seismic zone’s bedrock was formed as several generations of mountains rose and were eroded down again over the last billion or more years.

At well-studied plate boundaries like the San Andreas fault system in California, often scientists can determine the name of the specific fault that is responsible for an earthquake. In contrast, east of the Rocky Mountains this is rarely the case. The Northeast Ohio seismic zone is far from the nearest plate boundaries, which are in the center of the Atlantic Ocean and in the Caribbean Sea. The seismic zone is laced with known faults but numerous smaller or deeply buried faults remain undetected. Even the known faults are poorly located at earthquake depths. Accordingly, few, if any, earthquakes in the seismic zone can be linked to named faults. It is difficult to determine if a known fault is still active and could slip and cause an earthquake. As in most other areas east of the Rockies, the best guide to earthquake hazards in the Northeast Ohio seismic zone is the earthquakes themselves.

For More Information


A million Rohingya refugees in crowded shelters with poor sanitation

Mosaic

Author

Gaia Vince

“Local villagers helped Shamsark off the boat, all but carrying her and her three small children as they stumbled up the slippery bank to safety. She took one look back across the river, through the grey mist to the orange fires of burning Rohingya villages, to where their whole lives had been, where she’d left her husband’s body lying on the ground after he’d been shot.

Then she turned away and led her children through the scrubland to the roadside, joining tens of thousands of other weary refugees clustering around the bright printed logos of international relief organisations.

Here, in a ‘town’ of nearly 1 million refugees, where only temporary shelters were allowed. Here, where the rain would wash the topsoil off deforested hillsides into mudslides. Here, where much of the water was unclean and people often had to slosh knee-deep through mud and human waste.

The risk of infections was high. The children were vaccinated against measles, rubella and polio almost immediately but there were other diseases to worry about, most notably cholera. Many of the aid workers in the camp remembered Haiti after the devastating earthquake in 2010. Ten months later, that country experienced its first cholera outbreak in a century, and it is still going – nearly 10,000 people have died of cholera in Haiti since 2010, and there have been more than 800,000 cases.

Why we still haven’t stopped cholera

Why have attempts to get cholera under control in Haiti failed? Rose George reports.

The aid agencies in Kutupalong were determined not to let it become another Haiti. An epidemic here of cholera – a highly infectious waterborne disease that thrives in overcrowded, unsanitary living conditions – would be disastrous, and would risk spreading to the local community in Cox’s Bazar, already struggling to adjust after taking in a large number of refugees.

So organisations working in the camp came up with an unprecedented public health intervention: to give every single person a new oral cholera vaccine. It was an enormous undertaking, but it seemed to work. There were no cholera outbreaks.

What happened instead took them all by surprise.

© Eva Bee for Mosaic

Since the 1960s, the majority Buddhist nation of Myanmar, also called Burma, has restricted the movements and rights of its minority ethnic groups. Despite having lived in Myanmar for centuries, the mainly Muslim Rohingya people have been particularly targeted.

Things worsened in 1982, when the Citizenship Law denied the Rohingya citizenship, effectively rendering them stateless. Their rights to marriage, education, healthcare and employment were severely restricted; many were forced into labour and had their land seized arbitrarily; they lived in extreme poverty, paid excessive taxes and were not allowed to travel freely. Further restrictions in 2012 confined thousands to ghettos and displacement camps, a policy that Amnesty International likened to apartheid. Almost 200,000 Rohingya are estimated to have fled to Bangladesh during these decades of discrimination, but not all were granted refugee status.

Then, on 25 August 2017, the Myanmar military began a coordinated massacre of the Rohingya who remained, delegating much of the violence to unofficial groups of anti-Rohingya militants. In what the United Nations has described as genocide, people were tortured, raped and murdered, their houses burned and their animals killed.

Shamsark was at home in her village, sleeping. At midnight, gunshots and screams shattered the silence of paddy fields.

With a pounding heart, Shamsark and her husband, Khalad, grabbed their children and ran outside. The village was on fire. As they ran, a staccato of bullets flew at their backs. The air was thick with smoke and Shamsark screamed at her children to hold hands as people fell around them. Four bullets pierced Khalad and he dropped to the ground, bleeding and unconscious.

As the gunmen approached, Shamsark’s neighbours urged her to run with the children. If you can make it to the forest, you will be safe, they told her. We will bring your husband to you.

She just about made it to the forest with the children. Her leg had been injured but it was too dark to see how badly. There were hundreds of people around her, struggling through the undergrowth, all fleeing from their villages towards the banks of the river Naf, the border with Bangladesh. She clutched her children close, urging them on through their tiredness.

When they had made it a safe distance, she stopped. We will wait here for your father, she told the children. As the light came up, it began to rain with the heavy commitment of monsoon. This was rice-planting season – the paddy fields would usually be full of activity, growing the food for the coming months. Shamsark thought of the barren land and the empty bellies of her children.

Slowly the hours of waiting turned to days. Her children cried in hunger and she plucked leaves for them to chew, but sometimes the leaves made them sick, vomiting up what little nutrition they’d had. By the fourth day, Shamsark feared the children would not survive if she didn’t find food, so they followed the trail left by others through the forest.

After two days of walking they reached the riverbank but militants had begun burning parts of the forest and shooting the escaping Rohingya. Panicking, Shamsark took her children back into the forest.

On the eighth day, delirious with hunger and tiredness, she made it to a river crossing. The muddy bank teemed with thousands of people, many injured, dirty and sick. A few small boats were being overloaded with those who could afford to pay. Suddenly, the moans and screams were drowned out by a new sound overhead. Looking up, Shamsark saw a military helicopter about to launch an attack.

© Eva Bee for Mosaic

It was the end of August when the militants reached Feruja’s village. Heavily pregnant and uncomfortable, she was alerted by the smell of burning and restless animals. It wasn’t totally unexpected – there had been rumours, gruesome stories of raids on Rohingya villages. Now it was their turn.She urgently woke her husband and together they bustled their five children to the door. They heard shouts and gunshots, then screams. Militants were torching their neighbours’ homes and attacking the fleeing occupants with knives.

As her children began running, it became clear that Feruja was in no state to escape. She begged her husband, North, to flee with the children. Instead, he took them all to Feruja’s parents’ house at the far edge of the village. Silently, the family of nine hid in an outhouse, chickens pecking at their feet and screams in their ears.

After an eternity, the village fell silent. In the blackness, North rose to his feet and whispered that it was time to leave. They needed to make it into the forest before daybreak. But Feruja could not stand. Her labour pains had started while they hid, and were now intense: the baby was coming.

At 3am, less than an hour after she’d given birth, North carried Feruja’s bleeding, semi-conscious body out of the house. Her father refused to go with his wife, daughter, son-in-law and now six grandchildren, saying he would rather die there than flee his home. Reluctantly they left him and made their way through the darkness. When they reached the riverbank, they hid there with hundreds of other families.

To Feruja’s joy, her father joined them the next day – seeing the devastation of his ancestral village, he’d realised there was nothing left for him in Myanmar.

After three days, the group set off for the crossing point, where some 5,000 refugees were already waiting to cross to Bangladesh on dangerously overloaded vessels. Boatmen were charging 10,000 Bangladeshi taka (about US$120 at the time) – a fortune for such impoverished people, most of whom had fled their homes with nothing.

Feruja’s brother, who was living outside Myanmar, was able to send her the money for passage for the whole family. They were a quarter of the way across when gunmen started firing at them. A bullet hit her four-year-old daughter in the head. Feruja screamed at the boatmen to go faster, as she desperately cradled her bleeding child and her newborn.

Initial media coverage was followed by mounting reports of atrocities. Footage of thousands of desperate people fleeing burning villages was beamed across the world. Within weeks, hundreds of thousands of survivors had crossed from Rakhine state on the west coast of Myanmar, across the river Naf and into Bangladesh, swelling the number of Rohingya refugees there to over half a million, and more were on their way.

Both Feruja’s and Shamsark’s families were among them having somehow, miraculously, made it to safety – even Feruja’s shot daughter.

Like many others, Mainul Hasan felt compelled to help his fellow Muslims, and, as a doctor and public health specialist living in Dhaka, the capital of Bangladesh, he was in a position to do so. Impulsively he headed to the airport and bought a ticket on the first flight to Cox’s Bazar.

“At that time, I wasn’t involved with any relief organisations, I just came to do some voluntary work, to try to help out. I found some of my former colleagues at MSF [Médecins Sans Frontières], who were already there, so I went to join them,” Hasan says.

It was an utterly chaotic scene: thousands of refugees arriving daily and nowhere to put them. “People were just standing on the roadside, they had travelled long distances, they were injured, some were carrying other people, and there was no food or anything.”

Donations of food, blankets, medicines and other resources were pouring in from across the nation and the international community, but there was no systematic way of distributing any of it. “People were just throwing food to people at the roadside and people were moving to take it,” Hasan says. Desperate, starved Rohingya arrivals were getting injured in the rush for supplies.

“We were trying to provide treatment, but there were no clinics, so we were just putting down polythene bags in front of us and providing treatment on these,” he says.

“There were people with bullet injuries, head injuries, and some who were in severe shock – they couldn’t say anything, they just keep silent, just moving around, and when you’re asking questions then they’re crying. And they’re describing what happened in front of them and that people were killed in front of them, and they saw their houses burned, and they came empty-handed, with nothing.”

When Feruja and her family arrived at the refugee camp, she had lost a lot of blood and needed urgent medical attention. Her daughter’s head injury needed surgery, but the bullet could not be safely extracted so it was left where it lodged. With little food and poor living conditions, recovery was slow.

Like everyone in the camp, they slept on mats on the bare floor, and ate sparse World Food Programme rations. The army had helped clear a large area of hilly forest for new arrivals – it had previously been used by local villagers for food and to graze animals – and NGOs were sinking hand-pumps to provide water, helping erect shelters, and distributing rations of oil, rice and pulses.

Feruja tried not to think of her spacious family home in Myanmar, her vegetable garden, their ten cows, their chickens, their fields. The few families who had been able to bring with them items of value – gold smuggled out, sewn into their clothes – could trade it in the fast-emerging markets for vegetables or fruit, which were highly sought-after.

But life for every refugee, whether formerly rich or poor, had been reduced to a few square metres of shelter abutting a stream of sewage-infested runoff water.

Aware of the enormous risk of cholera in these circumstances, on 27 September 2017 the Bangladeshi government made an official request for 900,000 doses of cholera vaccine. The vaccine had been stockpiled since 2013 by an International Coordinating Group funded by Gavi, the vaccine alliance.

Seth Berkley, head of Gavi, says: “We were gravely concerned by the critical situation they faced and the potential public health disaster that could occur if we didn’t act fast.”

Approval was given within 24 hours by the coordinating partners, including MSF, the World Health Organization and UNICEF, the United Nations children’s fund. By October, the enormous vaccination programme was underway to protect hundreds of thousands of Rohingya arrivals in the camp, as well as those outside, mostly Rohingya who had already found shelter among Bangladeshi communities.

The new vaccine could be swallowed rather than injected, but it had to be given twice to be fully effective, so Hasan and his colleagues worked tirelessly day and night to administer one of the largest cholera vaccination programmes in history. “It was a huge effort, to make sure everyone got the first dose and then the next dose, to be protected,” he says.

It was worth it: in spite of the appalling slum conditions and terrible overcrowding, there have been no cholera outbreaks to date. It was a marvellous achievement.

But before the health workers could enjoy their success, several people in the camp developed painful swollen throats. They became feverish, struggling to breathe. More people fell sick. Then they started dying. Rumours about this terrifying disease swept through the deeply traumatised camp. People became increasingly fearful. As medics ran tests to identify the deadly plague, even the health workers were afraid – nobody had seen this sickness before.

© Eva Bee for Mosaic

It turned out to be diphtheria. The reason no one recognised it was because diphtheria, once a major killer, had been eradicated from most of the world for decades.A century ago, diphtheria affected hundreds of thousands of people in the US alone, killing tens of thousands every year. In 2016, there were just 7,097 cases reported globally because nearly 90 per cent of the world’s children are routinely vaccinated against it, using a widely available, cheap and highly effective vaccine.

By the end of 2017, there had been 3,000 suspected cases and 28 deaths in Kutupalong camp and Cox’s Bazar. Why?

“This outbreak was not the product of conditions within the camps, but rather a deadly legacy of the conditions in which they had been living before they fled Myanmar,” says Berkley.

It was yet more evidence of the appalling living conditions the Rohingya communities endured in Myanmar – the Buddhist majority received diphtheria protection in their routine childhood vaccines, but most minority ethnic groups did not.

In 2015, Hasan had been part of a team sent by UNICEF to assess vaccination coverage in Myanmar in light of a polio outbreak in Rakhine state. He says that the national immunisation level was above 80 per cent, but it had dropped far lower in Rakhine, where most Rohingya lived, because sectarian riots since 2012, and the government crackdown and forced displacements that followed, had disrupted the immunisation programmes. And when not enough children are receiving routine vaccinations, diseases long extinguished across most of the globe can reappear.

That winter, the WHO and UNICEF supported a mass polio vaccination programme across affected areas. There were few clinics for the Rohingya, Hasan says, and health workers faced huge issues of distrust – a hostility to officials built up through decades of abuse by the Myanmar authorities. This same distrust made responding to the 2017 diphtheria outbreak more challenging.

Diphtheria can kill 10 per cent of those infected so the agencies had to act fast. Gavi provided urgent supplies for a three-dose immunisation programme for children aged 7 to 15 throughout the camp. However, unlike the cholera vaccine, this was not an oral treatment, and the WHO and UNICEF teams met resistance when they tried to administer the injections.

Stories flew around about the vaccines. It was said that the injections would make you infertile, or turn you Christian, or make you sick, Hasan tells me.

Aid workers took their time, therefore, even as diphtheria cases continued to soar. They worked with community leaders, going shelter to shelter, building trust and ensuring that children like Feruja’s and Shamsark’s were all protected. Gradually, the vaccination programme succeeded: new cases peaked at a hundred a day in early December, and then fell. The outbreak was contained by January 2018.

I visit Kutupalong camp at the end of February 2019, 18 months after the massacre. It takes around an hour and a half to drive south from the bustling seaside town of Cox’s Bazar to what quickly became the world’s largest refugee camp, near the Bangladesh–Myanmar border, a journey that hundreds of international aid workers and supply trucks make daily.

The road is poor and sections of it are frequently closed for repairs – the UNICEF vehicle I travel in has to drive along the beach for part of the journey, passing several unlucky cars and rickshaws that have become entrenched in the sand. We pass through small towns and villages, each more impoverished than the last. Children search through piles of rubbish, goats and cows chew on plastic, rice farmers wade through their paddy fields. These are the people who opened their hearts and homes to the thousands of Rohingya, around 80,000 of whom are not in the camp but living with local hosts who took them in.

In fact, the Rohingya tragedy has been devastating for the local community and its environment. Large swathes of the forest have been cleared, the local roads have become dangerously busy, polluted thoroughfares make journeying to school slow and difficult, food prices have soared, wages have fallen, jobs are scarce and people feel insecure.

In a matter of weeks, the local population of 350,000 people accepted almost 1 million migrants. Considering the reaction in Europe (population: 740 million) to the arrival of a similar number of Syrian refugees over many years, it is astonishing how accommodating and generous this community has been. Cox’s Bazar is one of Bangladesh’s poorest districts, and they were told by the government that the Rohingya people would be here for two or three months. One and a half years later, the strain is very apparent.

It’s easy for a sense of disparity to grow in a community that is struggling while refugees are being given food, healthcare and other assistance. In fact, over a quarter of aid agencies’ resources here are being directed to helping the local Bangladeshi community. UNICEF funds a neonatal unit in Cox’s Bazar that benefits babies born to either community, and during my visit I spot a group of village schoolchildren wearing schoolbags distributed by the same organisation.

Although the Bangladeshi government has generously accommodated the vast numbers of Rohingya, it has not granted them refugee status. Without this status, they are not supposed to leave the camp or work, and they have limited access to education. The Rohingya remain stateless.

Over the previous year, the camp has been much improved. The army has laid a concrete road through the sprawling site, steps and bridges have been made so people are no longer forced to clamber up muddy hillsides, better shelters have been constructed with concrete bases and bamboo lattice sides (the government still forbids permanent structures), and there are hundreds of concrete latrines.

Nevertheless, this vast sprawling ghetto is a social and environmental calamity. I visit during the dry season, when the untethered soil and sand streams off the hills in the breeze. A thick layer of dust coats everything – it is no surprise that more than half of medical admissions here are for respiratory diseases; after just two hours in the camp, my throat is burning.

Men, women and children while away long hours of unemployed boredom sitting on the ground inside or outside their shelters. Violence, especially against women and girls, is high, as are child marriage and child labour. There have been at least 30 murders, I’m told, and people smuggling is a constant danger for this vulnerable community. Agency workers and visitors like me are under strict curfew, having to leave the camp by 4pm and be back in Cox’s Bazar by sundown.

© Eva Bee for Mosaic

Feruja’s daughter is playing in the dirt outside her shelter when I arrive. I see her healed head wound, a circle of satin skin shining in the sun – a small souvenir of a terrifying ordeal that has consumed much of her short life. Poking my head inside the shelter, I pick out Feruja, sitting cross-legged on the floor, backlit by sunlight bleeding through plastic-sheet walls. Her baby, born in exodus, is sleeping next to her on a mat.

In these impoverished surroundings, there is something regal about Feruja’s demeanour, her straight-backed pose, the way her eyes rule the small space, and her unflinching account of the massacre. Now, she tells me, they have safety, but this is not a life. Feruja is haunted by her experiences, battling poor health and malnutrition, yet it is their statelessness that brings out her fury. As citizens of nowhere, the Rohingya are trapped on a bare hillside in a foreign country with no hope.

“I miss my vegetable garden,” she says.

As the uncertainty lingers, aid agencies are trying to alleviate some of the distress of a life lived in limbo. Child-friendly spaces and women’s centres have been set up to provide some informal education, family planning, advice, training and refuge from exploitative domestic situations. In one that I visit, the children are dancing and singing in rehearsal for a performance.

Now that the infrastructure has improved and initial acute health problems, such as severe injuries and epidemics, have been overcome, the aid workers here face the same day-to-day public health challenges of any large slum. Except that here, the community is also burdened with high rates of malnutrition, disability, mental health problems and despair. For children and adults alike, the psychological toll of camp life is compounded by the trauma of the events they experienced during their escape.

I visit Shamsark’s family shelter through a maze of paths and find her sitting with a baby. She tells me that her children still scream out in the night, reliving terrifying incidents through their nightmares.

In spite of everything, she longs to go back to Myanmar, to live with her four children in their village. She is not interested in revenge or punishing the militants, but, she says, “we have suffered, we have been shot – many were killed – and we want our rights and our ancestral lands”.

Crucially, Shamsark wants citizenship. I hear the same weary demand from every person I speak to. There is still no sign of it being met.

While the initial public-health response to the Rohingya’s plight, from both the Bangladeshi government and the international community, was rapid and effective, the longer-term political response has been lacking. The government is now considering plans to move these vulnerable, stateless people to an isolated island, prone to cyclones and flooding, in the Bay of Bengal. The international community must instead support Bangladesh to manage this refugee population sustainably. They need physical and legal security. They need a home.

There has been one bright moment for Shamsark, however.

In November 2017, more than two months after being forced to flee, she was approached by a UNHCR official who asked her to come to a clinic on the other side of the camp. Nervously, she protested that her children had had their vaccinations and were well. Nevertheless, her community leader reassured her and told her to go with the official.

They walked for 30 minutes in near silence until they reached the electrical hum of the clinic’s generators. She followed him inside. “Do you know this man?” he asked her, pointing to a thin, sick man, lying crumpled on a bed.

Shamsark turned and looked. The man, in his early 30s, appeared prematurely old. He had no hair and was wrapped in bandages. Yet she knew him immediately: it was her husband, Khalad, back from the dead. His eyes opened briefly at her shocked exclamation, before closing once more.

After he had been shot, some of the villagers had carried him to safety. Dressing his wounds as best they could, they took him over the forested hills and across the border, where he was rushed to a hospital in the Bangladeshi port city of Chittagong, 150 km north of Cox’s Bazar.

For weeks, Khalad had been close to death, but eventually he had grown strong enough to be transferred to the camp clinic, where officials had managed to trace his family.

Shamsark was overjoyed – and overwhelmed. Her husband was terribly weak and unable to walk, but he was alive. Her children were no longer fatherless and she was no longer alone.

Our articles are published under a Creative Commons licence. This means that they can be reused for free. We just ask that you attribute the work to its author and Mosaic and link back to our website. Mosaic’s editor is Chrissie Giles and its ISSN is 2398-9399.


The Mountain Fire has burned about 7,200 acres in the national forest northeast of Phoenix

CNN


WHO: Food Safety Facts

WHO

Food Safety Facts

  • An estimated 600 million people – almost 1 in 10 people in the world – fall ill after eating contaminated food and 420 000 die every year.
  • Children aged under 5 carry 40% of the foodborne disease burden, with 125 000 deaths every year.
  • Foodborne illnesses are caused by bacteria, viruses, parasites or chemical substances entering the body through contaminated food or water.
  • Foodborne diseases impede socioeconomic development by straining health care systems and harming national economies, tourism and trade.
  • The value of trade in food is US$ 1.6 trillion, which is approximately 10% of total annual trade globally.
  • Recent estimates indicate that the impact of unsafe food costs low- and middle-income economies around US$ 95 billion in lost productivity each year.
  • Improving hygiene practices in the food and agricultural sectors helps to reduce the emergence and spread of antimicrobial resistance along the food chain and in the environment.

WHO: All about polio

WHO

Key facts

  • Polio (poliomyelitis) mainly affects children under 5 years of age.
  • 1 in 200 infections leads to irreversible paralysis. Among those paralysed, 5% to 10% die when their breathing muscles become immobilized.
  • Cases due to wild poliovirus have decreased by over 99% since 1988, from an estimated 350 000 cases then, to 33 (1) reported cases in 2018.
  • As long as a single child remains infected, children in all countries are at risk of contracting polio. Failure to eradicate polio from these last remaining strongholds could result in as many as 200 000 new cases every year, within 10 years, all over the world.
  • In most countries, the global effort has expanded capacities to tackle other infectious diseases by building effective surveillance and immunization systems.

Symptoms

Polio is a highly infectious disease caused by a virus. It invades the nervous system, and can cause total paralysis in a matter of hours. The virus is transmitted by person-to-person spread mainly through the faecal-oral route or, less frequently, by a common vehicle (for example, contaminated water or food) and multiplies in the intestine. Initial symptoms are fever, fatigue, headache, vomiting, stiffness of the neck and pain in the limbs. 1 in 200 infections leads to irreversible paralysis (usually in the legs). Among those paralysed, 5% to 10% die when their breathing muscles become immobilized.

People most at risk

Polio mainly affects children under 5 years of age.

Prevention

There is no cure for polio, it can only be prevented. Polio vaccine, given multiple times, can protect a child for life.

Global caseload

Wild poliovirus cases have decreased by over 99% since 1988, from an estimated 350 000 cases in more than 125 endemic countries then, to 33 (1) reported cases in 2018.

Of the 3 strains of wild poliovirus (type 1, type 2, and type 3), wild poliovirus type 2 was eradicated in 1999 and no case of wild poliovirus type 3 has been found since the last reported case in Nigeria in November 2012.

WHO Response

Launch of the Global Polio Eradication Initiative

In 1988, the Forty-first World Health Assembly adopted a resolution for the worldwide eradication of polio. It marked the launch of the Global Polio Eradication Initiative (GPEI), spearheaded by national governments, WHO, Rotary International, the US Centers for Disease Control and Prevention (CDC), UNICEF, and supported by key partners including the Bill & Melinda Gates Foundation. This followed the certification of the eradication of smallpox in 1980, progress during the 1980s towards elimination of the poliovirus in the Americas, and Rotary International’s commitment to raise funds to protect all children from the disease.

Progress

Overall, since the GPEI was launched, the number of cases has fallen by over 99%.

In 1994, the WHO Region of the Americas was certified polio-free, followed by the WHO Western Pacific Region in 2000 and the WHO European Region in June 2002. On 27 March 2014, the WHO South-East Asia Region was certified polio-free, meaning that transmission of wild poliovirus has been interrupted in this bloc of 11 countries stretching from Indonesia to India. This achievement marks a significant leap forward in global eradication, with 80% of the world’s population now living in certified polio-free regions.

More than 16 million people are able to walk today, who would otherwise have been paralysed. An estimated 1.5 million childhood deaths have been prevented, through the systematic administration of vitamin A during polio immunization activities.

Opportunity and risks: an emergency approach

The strategies for polio eradication work when they are fully implemented. This is clearly demonstrated by India’s success in stopping polio in January 2011, in arguably the most technically-challenging place, and polio-free certification of the entire South-East Asia Region of WHO occurred in March 2014.

Failure to implement strategic approaches, however, leads to ongoing transmission of the virus. Endemic transmission is continuing in Afghanistan, Nigeria and Pakistan. Failure to stop polio in these last remaining areas could result in as many as 200 000 new cases every year, within 10 years, all over the world.

Recognizing both the epidemiological opportunity and the significant risks of potential failure, the “Polio Eradication and Endgame Strategic Plan” was developed, in consultation with polio-affected countries, stakeholders, donors, partners and national and international advisory bodies. The new Plan was presented at a Global Vaccine Summit in Abu Dhabi, United Arab Emirates, at the end of April 2013. It is the first plan to eradicate all types of polio disease simultaneously – both due to wild poliovirus and due to vaccine-derived polioviruses.

Future benefits of polio eradication

Once polio is eradicated, the world can celebrate the delivery of a major global public good that will benefit all people equally, no matter where they live. Economic modelling has found that the eradication of polio would save at least US$ 40–50 billion, mostly in low-income countries. Most importantly, success will mean that no child will ever again suffer the terrible effects of lifelong polio-paralysis.


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