Nearly fifty years ago, I was living in Entebbe, then capital of Uganda, studying mosquito-borne viruses at the East African Virus Research Institute. One of those, a dengue-like virus, was named after the Zika forest, a little residual pocket of trees down the hill from the institute, where it was first isolated. I was coauthor on a 1964 paper describing 12 strains of Zika virus from mosquitoes collected there (Bull World Health Organ, 31:57-69, 1964), and we deduced that it cycled between mosquitoes and monkeys in the Zika treetops.












