"The first major outbreak of Zika virus occurred in April and May 2007 on Yap island, a part of the Federated States of Micronesia in the South Pacific. Of the island’s 7,400 residents, antibodies against Zika were found in 74 percent of the population. No deaths were attributed to ZIKA, and none of the patients were hospitalized. Long-term nerve damage known as Guillaine-Barre Syndrome was reported. In the following year, local health workers reported an increase in cases of microcephaly in newborns, a claim disputed in other reports. (I assume these folks continue to have sex and procreate. Considering there has been no follow up studies we can assume all is well)
The Yap outbreak was an extraordinary phenomenon for several reasons. Over the past 60 years since its discovery by the Rockefeller Institute in a monkey in the Zika Valley of Uganda, only 14 cases in humans had been reported.