Zika still a threat

A mosquito from the genus Aedes, which can carry the Zika virus. In hard-hit Brazil, confirmed Zika cases dropped from 206,000 in 2016 to fewer than 14,000 in 2017, all before April. — TNS

Two years ago, the world was gripped in Zika panic as the mosquito-borne virus infected millions and spread across 80 countries.

Officials declared a global health emergency and tourists cancelled their tropical vacations. Thousands of babies were born with devastating birth defects after their mothers were infected in pregnancy.