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Dengue virus and Zika virus transmission by bites of coinfected Aedes aegypti. A group of 8 coinfected mosquitoes were placed in a vial with the nylon mesh side against the ears of an anesthetized BALB/c mouse. Mosquitoes can be seen probing on the right ear of the mouse. The mosquito-exposed region of the left ear is visible after removing the plastic feeding vial (white arrows).
