Dengue aggravates Zika virus

LONDON – Scientists studying the Zika outbreak in Brazil say previous exposure to another mosquito-borne virus, dengue, may exacerbate the potency of Zika infection. Early-stage laboratory findings by researchers in Britain France and Thailand suggest Zika uses the body’s own defences as a “Trojan horse”, allowing it to enter a human cell undetected. Once inside […]

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