2007 Yap Islands Zika virus outbreak
| The Yap Islands in the Pacific Ocean, with a land area of 100.2 square kilometres (38.7 sq mi) and a population of 6,300 (in 2003) | 
The 2007 Yap Islands Zika virus outbreak represented the first time Zika virus had been detected outside Africa and Asia. It occurred in the Yap Islands, an island chain in the Federated States of Micronesia. Zika virus (ZIKV) is a vector-borne flavivirus in the same family as yellow fever, dengue, West Nile and Japanese encephalitis viruses.