Global & Disaster Medicine

Clinical differences between Dengue and Zika

EID

Yan G, Pang L, Cook AR, Ho HJ, Win MS, Khoo AL, et al. Distinguishing Zika and dengue viruses through simple clinical assessment, Singapore. Emerg Infect Dis. 2018 Aug [date cited]. https://doi.org/10.3201/eid2408.171883

“…Conjunctivitis strongly indicated Zika virus infection (odds ratio [OR] 30.1, 95% CI 9.57–94.44; p < 0.001). In contrast, fever (OR 0.05, 95% CI 0.01–0.47; p = 0.008), myalgia (OR 0.20, 95% CI 0.08–0.48; p<0.001), and headache (OR 0.12, 95% CI 0.05–0.30; p<0.001) were more prominent in patients with DENV infection.

Further, DENV patients tended to have thrombocytopenia (median platelet count 132 × 109/µL, range 15–386 × 109/µL) and monocytosis (median monocyte count 0.50 × 109/µL, range 0.11–1.70 × 109/µL), whereas Zika patients tended to have normal platelet (median 225 × 109/µL, range 128–326 × 109/µL; p<0.001) and monocyte (median 0.35 × 109/µL, range 0.13–1.00 × 109/µL; p = 0.021) counts……”


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