Global & Disaster Medicine

Archive for the ‘Zika virus’ Category

Zika in the US: Current data

CDC

US States

  • Locally acquired mosquito-borne cases reported: 29
  • Travel-associated cases reported: 2,487
  • Laboratory acquired cases reported:  1
  • Total: 2,517
    • Sexually transmitted: 22
    • Guillain-Barré syndrome: 7

US Territories

  • Locally acquired cases reported: 8,968
  • Travel-associated cases reported: 43
  • Total: 9,011*
    • Guillain-Barré syndrome: 26

Florida, 8/25/16: 11 new travel related cases today

Florida Health

Infection Type

 Infection Count

Travel-Related   Infections of Zika

  534

Non-Travel   Related Infections of Zika

  43

Infections   Involving Pregnant Women

  70


CDC Expands Guidance for Travel and Testing of Pregnant Women, Women of Reproductive Age, and Their Partners for Zika Virus Infection Related to Mosquito-borne Zika Virus Transmission in Miami-Dade, Florida

CDC

CDC Health Alert Network (HAN) Health Advisory: CDC Expands Guidance for Travel and Testing of Pregnant Women, Women of Reproductive Age, and Their Partners for Zika Virus Infection Related to Mosquito-borne Zika Virus Transmission in Miami-Dade, Florida

The following CDC Health Alert Network (HAN) Health Advisory message was issued August 19, 2016. You are receiving this information because you subscribe to COCA email updates. If a colleague forwarded this email to you, yet you would like to receive future updates directly from COCA, click here.

If you have any questions on this or other clinical issues, please e-mail coca@cdc.gov 

On behalf of the Clinician Outreach and Communication Activity (COCA)
Centers for Disease Control and Prevention (CDC)
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Distributed via the CDC Health Alert Network 
August 19, 2016, 1515 ET (3:15 PM ET) 
CDCHAN-00394

CDC Expands Guidance for Travel and Testing of Pregnant Women, Women of Reproductive Age, and Their Partners for Zika Virus Infection Related to Mosquito-borne Zika Virus Transmission in Miami-Dade, Florida

Summary
CDC has previously issued travel, testing, and other guidance for local mosquito-borne Zika virus transmission (active Zika virus transmission) for a one-square-mile area in the Wynwood area of‎ Miami that the Florida Department of Health (FL DOH) identified. The guidance for those who live in or traveled to this area any time after June 15, 2016, remains in effect.

FL DOH continues to investigate active Zika virus transmission in South Florida. Investigation has revealed a new area of active transmission in a 1.5-square-mile section of Miami Beach. In addition, FL DOH has identified multiple other individual instances of mosquito-borne Zika virus infection and an increase in travel-related cases.

Because the incubation period for Zika infection is up to two weeks, a high proportion of infected people have no symptoms, and the diagnosis and investigation of cases takes several weeks, coupled with these individual instances of mosquito-borne Zika virus infection and increase in travel-related cases, it is possible that other neighborhoods in Miami-Dade County have active Zika virus transmission that is not yet apparent.

For the identified area of active transmission in Miami Beach, CDC advises that the recommendations outlined below be followed. Based on the earliest time of symptom onset and a maximal two-week incubation period for Zika virus, this guidance applies to pregnant women, women of reproductive age, and their partners who live in or traveled to Miami Beach after July 14, 2016.

For all other areas of Miami-Dade County, while further investigations are underway, CDC advises strict adherence to precautions to prevent mosquito bites. Consistent with the August 3 recommendation of the Florida Governor, pregnant women in these areas should be assessed for potential exposure to Zika virus and, when indicated, obtain laboratory testing.  Pregnant women and partners of pregnant women who are concerned about potential Zika virus exposure may also consider postponing nonessential travel to all parts of Miami-Dade County.  

This is an ongoing investigation, and FL DOH and CDC are working together to rapidly learn more about the extent of active Zika virus transmission in Miami-Dade County. CDC will update these recommendations as more information becomes available.  

Recommendations

  1.  Pregnant women should avoid travel to the designated area of Miami Beach (http://www.cdc.gov/zika/intheus/florida-update.html), in addition to the designate)d area of Wynwood, both located in Miami-Dade County, because active Zika virus transmission has been confirmed in both of these areas.
  2. Pregnant women and their partners living in or traveling to the designated areas should be aware of active Zika virus transmission and should follow steps to prevent mosquito bites (http://www.cdc.gov/zika/prevention/prevent-mosquito-bites.html). Healthcare providers caring for pregnant women and their partners should visit CDC Zika website (http://www.cdc.gov/zika/) frequently for the most up-to-date recommendations.
  3. Women and men who live in or who have traveled to the designated area of Miami Beach since July 14, 2016, should be aware of active Zika virus transmission, and those who have a pregnant sex partner should consistently and correctly use condoms or other barriers to prevent infection during sex or not have sex for the duration of the pregnancy. The same recommendation applies for women and men who live in or who have traveled to the designated area in Wynwood since June 15, 2016.
  4. Pregnant women and partners of pregnant women who are concerned about potential Zika virus exposure may also consider postponing nonessential travel to all parts of Miami-Dade County.
  5. All pregnant women in the United States should be assessed for possible Zika virus exposure and signs or symptoms consistent with Zika virus disease at each prenatal care visit. Women with ongoing risk of possible Zika virus exposure include those who live in or frequently travel to the designated areas of Miami Beach and Wynwood due to the possibility of active Zika virus transmission.  Women with limited risk of Zika virus exposure include those who traveled to the designated areas of Miami Beach and Wynwood or had sex without using condoms or other barrier methods to prevent infection by a partner who lives in or traveled to the designated areas of Miami Beach and Wynwood. Each prenatal evaluation should include an assessment of signs and symptoms of Zika virus disease (acute onset of fever, rash, arthralgia, conjunctivitis), travel history, and sexual exposure to determine whether Zika virus testing is indicated. Limitations of laboratory tests used to diagnose Zika virus infection should also be discussed with pregnant women and their partners. 
  6. Pregnant women with possible exposure to Zika virus and signs or symptoms consistent with Zika virus disease should be tested for Zika virus infection based on time of evaluation relative to symptom onset in accordance with CDC guidance (http://www.cdc.gov/mmwr/volumes/65/wr/mm6529e1.htm?s_cid=mm6529e1_e). 
  7. Pregnant women with ongoing risk of possible Zika virus exposure and who do not report symptoms of Zika virus disease should be tested in the first and second trimesters of pregnancy in accordance with CDC guidance (http://www.cdc.gov/mmwr/volumes/65/wr/mm6529e1.htm?s_cid=mm6529e1_e). 
  8. Pregnant women with limited risk of possible Zika virus exposure and who do not report symptoms should consult with their healthcare providers to obtain testing for Zika virus infection based on the elapsed interval since their last possible exposure in accordance with CDC guidance (http://www.cdc.gov/mmwr/volumes/65/wr/mm6529e1.htm?s_cid=mm6529e1_e). 
  9. Women with Zika virus disease should wait at least eight weeks after symptom onset to attempt conception, and men with Zika virus disease should wait at least six months after symptom onset.
  10.  Women and men with ongoing risk of possible Zika virus exposure who do not have signs or symptoms consistent with Zika virus disease and are considering pregnancy should consult their healthcare provider. Due to the ongoing risk of possible Zika virus exposure, healthcare providers should discuss the risks of Zika, emphasize ways to prevent Zika virus infection, and provide information about safe and effective contraceptive methods. As part of their pregnancy planning and counseling with their healthcare providers, some women and their partners living either of the two designated areas (Miami Beach and Wynwood) might consider if now is the right time to get pregnant due to the possibility of exposure to Zika virus during pregnancy or the periconceptional period.
  11. Women and men with limited risk of possible Zika virus exposure and who do not report signs or symptoms consistent with Zika virus disease should wait at least eight weeks after last possible exposure to attempt conception.

Background 
Zika is spread to people primarily through the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus). Zika virus can also be sexually transmitted. Zika virus infection during pregnancy can cause microcephaly and severe fetal brain defects, and has been associated with other adverse pregnancy outcomes. Most persons infected with Zika virus will not have symptoms; infants with microcephaly and other birth defects have been born to women with Zika virus infection who do not report symptoms.

CDC’s testing recommendations for pregnant women are the same for those with ongoing and those with limited risk for possible Zika virus exposure who report clinical illness consistent with Zika virus disease (symptomatic pregnant women). Symptomatic pregnant women who are evaluated less than two weeks after symptom onset should receive serum and urine Zika virus rRT-PCR testing. Symptomatic pregnant women who are evaluated two to 12 weeks after symptom onset should first receive a Zika virus immunoglobulin (IgM) antibody test; if the IgM antibody test result is positive or equivocal (unclear), serum and urine rRT-PCR testing should be performed.

Testing recommendations for pregnant women with possible Zika virus exposure who do not report clinical illness consistent with Zika virus disease (asymptomatic pregnant women) differ based on the circumstances of possible exposure. For asymptomatic pregnant women with ongoing risk for possible exposure and who are evaluated less than two weeks after last possible exposure, rRT-PCR testing should be performed. If the rRT-PCR result is negative, a Zika virus IgM antibody test should be performed two to 12 weeks after the exposure. Asymptomatic pregnant with limited risk for possible exposure who are first evaluated two to 12 weeks after their last possible exposure should first receive a Zika virus IgM antibody test; if the IgM antibody test result is positive or equivocal (unclear), serum and urine rRT-PCR should be performed. Asymptomatic pregnant women with ongoing risk for possible exposure to Zika virus should receive Zika virus IgM antibody testing as part of routine obstetric care during the first and second trimesters; immediate rRT-PCR testing should be performed when IgM antibody test results are positive or equivocal (unclear).

Further information on the interpretation of laboratory test results and clinical management of pregnant women with laboratory evidence of possible Zika virus infection are available below.

For More Information


Guatemalan authorities on Wednesday confirmed the Central American country’s first case of a baby born with microcephaly linked to Zika.

Reuters


Haiti has identified its first case of the birth defect microcephaly linked to the Zika virus

Gulf Times


Florida: There are 18 new travel-related cases today with seven in Miami-Dade, four in Palm Beach, three in Broward, one in Brevard, one in Lee, one in Marion and one in Pinellas counties.

Florida Health

August 18, 2016

Department of Health Daily Zika Update

Contact:
Communications Office
NewsMedia@flhealth.gov
(850) 245-4111

Map of area affected by locally acquired Zika cases

Tallahassee, Fla. — In an effort to keep Florida residents and visitors safe and aware about the status of the Zika virus, the department will continue to issue a Zika virus update each week day. Updates will include a CDC-confirmed Zika case count by county and information to better keep Floridians prepared.

The department has conducted testing for the Zika virus for more than 3,673 people statewide. Florida currently has the capacity to test 4,997 people for active Zika virus and 2,799 for Zika antibodies. Per the Governor’s direction on August 3, all county health departments are now offering free Zika risk assessment and testing to any pregnant woman who would like to be tested.

There are 18 new travel-related cases today with seven in Miami-Dade, four in Palm Beach, three in Broward, one in Brevard, one in Lee, one in Marion and one in Pinellas counties. Please visit our website to see the full list of travel-related cases.

There are two new non-travel related cases today, both are located outside of the one-square mile area in Miami-Dade County. While the department is continuing to investigate areas in Miami-Dade and Palm Beach Counties where local transmissions of Zika may have occurred, the department still believes active transmissions are still only occurring in the area that is less than one square mile in Miami-Dade County.

For a complete breakdown of non-travel and travel-related Zika infections to-date, please see below.

Infection Type

Infection Count

Travel-Related Infections of Zika

479

Non-Travel Related Infections of Zika

35

Infections Involving Pregnant Women

63

 

ACTIVE INVESTIGATIONS

The department is currently conducting nine active investigations. We have moved the information regarding the investigations outside the Wynwood area to the Zika webpage, here.

Identified one-square mile in Miami-Dade – Two (2) original cases

Total # of Samples Collected

Negative Samples

Positive Samples

Pending Results

519

492

23

4

Door to door outreach and sampling continue. Mosquito abatement and reduction activities are on-going.

On August 4, the department announced we have completed testing in a 10 block area of the northwest quadrant of the one-square mile area and no people within the 10 block radius tested positive. On August 11, the department announced that it completed testing in an additional four block area and no people within that four block area tested positive. A map detailing the area is below. The CDC continues to monitor the area per their guidelines.

CLOSED INVESTIGATIONS

  • The department has closed out the investigations into the first cases in Miami-Dade and Broward County (two cases). The department tested 124 close contacts and individuals from the community and found no additional positives.

The department still believes active transmissions of the Zika virus are occurring in one small area in Miami-Dade County, just north of downtown. The exact location is within the boundaries of the following area: NW 5th Avenue to the west, US 1 to the east, NW/NE 38th Street to the north and NW/NE 20th Street to the south. This area is about one square mile and a map is below to detail the area. This remains the only area of the state where the department has confirmed there are local transmissions of Zika. If investigations reveal additional areas of likely active transmission, the department will announce a defined area of concern.

One case does not mean active transmission is taking place and that’s why the department conducts a thorough investigation by sampling close contacts and community members around each case to determine if additional people are infected. The department has not yet determined where the individual in Palm Beach County or the nine individuals outside the one-square mile in Miami-Dade County likely contracted Zika and will share more details as the investigations progress. If the department finds evidence that active transmission is occurring in an area, we will notify the media and the public.

CDC recommends that women who are pregnant or thinking of becoming pregnant postpone travel to areas with widespread Zika infection. Florida’s small case cluster is not considered widespread transmission, however, pregnant women are advised to avoid non-essential travel to the impacted area in Miami-Dade County (see map below). If you are pregnant and must travel or if you live or work in the impacted area, protect yourself from mosquito bites by wearing insect repellent, long clothing and limiting your time outdoors.

According to CDC guidance, providers should consider testing all pregnant women with a history of travel to a Zika affected area for the virus. It is also recommended that all pregnant women who reside in or travel frequently to the area where active transmission is likely occurring be tested for Zika in the first and second trimester. Pregnant women in the identified area can contact their medical provider or their local county health department to be tested and receive a Zika prevention kit. CDC recommends that a pregnant woman with a history of Zika virus and her provider should consider additional ultrasounds. Additionally, the department is working closely with the Healthy Start Coalition of Miami-Dade County to identify pregnant women in the one square mile area to ensure they have access to resources and information to protect themselves. CDC recommends that a pregnant woman with a history of Zika virus and her provider should consider additional ultrasounds.

Pregnant women can contact their local county health department for Zika risk assessment and testing hours and information. A Zika risk assessment will be conducted by county health department staff and blood and/or urine samples may be collected and sent to labs for testing. It may take one to two weeks to receive results.

Florida has been monitoring pregnant women with evidence of Zika regardless of symptoms since January. The total number of pregnant women who have been or are being monitored is 63.

On Feb. 12, Governor Scott directed the State Surgeon General to activate a Zika Virus Information Hotline for current Florida residents and visitors, as well as anyone planning on traveling to Florida in the near future. The hotline, managed by the Department of Health, has assisted 4,216 callers since it launched. The number for the Zika Virus Information Hotline is 1-855-622-6735.

The department urges Floridians to drain standing water weekly, no matter how seemingly small. A couple drops of water in a bottle cap can be a breeding location for mosquitoes. Residents and visitors also need to use repellents when enjoying the Florida outdoors.

For more information on DOH action and federal guidance, please click here.

For resources and information on Zika virus, click  here.

About the Florida Department of Health

The department, nationally accredited by the Public Health Accreditation Board, works to protect, promote and improve the health of all people in Florida through integrated state, county and community efforts.

Follow us on Twitter at  @HealthyFla and on  Facebook. For more information about the Florida Department of Health please visit  www.FloridaHealth.gov.


A Texas resident who recently traveled to an area of Miami with local Zika transmission has tested positive for the virus.

Texas DOH

“…This is the first Texas case to be linked to travel within the continental United States….”

 


WHO: Zika report around the world

WHO

Summary

  • As of 10 August 2016, 69 countries and territories (Fig. 1, Table 1) have reported evidence of mosquito-borne Zika virus transmission since 2007 (66 of these countries and territories have reported evidence of mosquito-borne Zika virus transmission since 2015):
    • 52 countries and territories with a first reported outbreak from 2015 onwards (Table 1).
    • Four countries are classified as having possible endemic transmission or have reported evidence of local mosquito-borne Zika infections in 2016.
    • 13 countries and territories have reported evidence of local mosquito-borne Zika infections in or before 2015, but without documentation of cases in 2016, or with the outbreak terminated.

  • The Cayman Islands, a British Overseas Territory in the Caribbean, is the latest territory to report locally-acquired mosquito borne Zika virus infection.
  • Since February 2016, 11 countries have reported evidence of person-to-person transmission of Zika virus, probably via a sexual route (Table 2).
  • As of 10 August 2016, 15 countries or territories have reported microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection or suggestive of congenital infection. Canada is the latest country to report a case of congenital malformation associated with a travel-related case of Zika virus infection. Four of the 15 total countries reported microcephaly cases born from mothers in countries with no endemic Zika virus transmission but who reported recent travel history to Zika-affected countries in the WHO Region of the Americas (Table 3).
  • As of 10 August 2016, the United States Centers for Disease Control and Prevention (US-CDC) reported 15 live-born infants with birth defects and six pregnancy losses with birth defects with laboratory evidence of Zika virus infection.
  • As of 10 August 2016, 16 countries and territories worldwide have reported an increased incidence of Guillain-Barré syndrome (GBS) and/or laboratory confirmation of a Zika virus infection among GBS cases (Table 4). Grenada is the latest country to report a case of GBS associated with a confirmed Zika virus infection.
  • In Guinea-Bissau, on 29 June 2016, Institute Pasteur Dakar (IPD) laboratory technicians confirmed that three of 12 samples tested positive for Zika by PC-R. All 12 samples tested negative against IgM Zika. One additional sample from a recent case also tested positive for Zika virus infection. All four samples were sent to IPD on 1 July for gene sequencing and the results are pending. Results from the 22 additional samples collected from the Bijagos archipelago and sent to IPD are negative with ELISA and PCR testing. The same samples were also sent to Dakar for confirmation. A further total of 12 new samples were collected and results are still pending.
  • Two cases of microcephaly have been reported in the Western region of Gabu in Guinea-Bissau. The family members of the two children with microcephaly have not travelled outside Guinea-Bissau. The investigations regarding these two cases are ongoing. Trainings for regional health staff on the Zika case definition and other areas are planned to help ensure that cases are detected efficiently and effectively.
  • The joint mission by staff from the WHO Regional Office for Africa and from WHO headquarters to Guinea-Bissau has concluded and priority activities and gaps were identified as the following: additional financial resources to reinforce leadership and coordination mechanisms of the Emergency operations Centre (EOC); reinforcement of epidemiologic and entomologic surveillance systems; increasing laboratory capacity at three levels; strengthening of response to Zika cases in terms of detection, community involvement and risk communication; and continued monitoring of Zika virus and its complications.
  • Zika virus test kits have been made available by the local authorities at the Central Public Health Laboratory in Rio de Janeiro in Brazil and symptomatic athletes, volunteers, visitors and residents are encouraged to get tested.
  • WHO has developed advice and information on diverse topics in the context of Zika virus.

CDC: Zika Cases in the US as of August 10, 2016 (5 am EST)

CDC

As of August 10, 2016 (5 am EST)

  • Zika virus disease and Zika virus congenital infection are nationally notifiable conditions.
  • This update from the CDC Arboviral Disease Branch includes provisional data reported to ArboNET for January 01, 2015 – August 10, 2016.

US States

  • Locally acquired mosquito-borne cases reported: 6
  • Travel-associated cases reported: 1,955
  • Laboratory acquired cases reported:  1
  • Total: 1,962
    • Sexually transmitted: 22
    • Guillain-Barré syndrome: 6

 

US Territories

  • Locally acquired cases reported: 6,587
  • Travel-associated cases reported: 31
  • Total: 6,618*
    • Guillain-Barré syndrome: 20

*Sexually transmitted cases are not reported for areas with local mosquito-borne transmission of Zika virus because it is not possible to determine whether infection occurred due to mosquito-borne or sexual transmission


CDC Map: Active Zika Virus Transmission in Florida

Active Zika Virus Transmission in Florida


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