In 2004, chikungunya virus (CHIKV ... Because CHIKV circulates during epidemics in an urban mosquito–human cycle, control of transmission relies on mosquito abatement, which is rarely effective.

explained the 16-year cycle. "The first reported chikungunya case was in 1963, with more cases emerging in 1975. It resurfaced strongly in 2005, and since then, we've seen cases every year.