Still, the virus remains "a highly significant and long term problem," according to the world health body.
"I didn’t expect that early in my career as an OB-GYN, I would be caught in the middle of another new disease outbreak — Zika."
Zika transmission is down during Brazil’s winter, but US health officials say it's still unsafe for pregnant women to visit.
Just when many Olympians are arriving — and others are canceling over Zika fears — Brazilian doctors are questioning the theory that the mosquito-borne virus caused an increase in microcephaly cases.
New York health clinics are urging Dominicans in New Yorker who are going home for the summer to take precautions against the Zika virus.
Relax, Olympians and Rio-bound fans: August is a bad time for the mosquitos that transmit Zika. Researchers estimate only 1 to 16 of the half-million people attending will show symptoms of Zika — and 3 to 37 travelers headed home will be infected.
As Zika spreads, a Brazilian lawmaker is pushing for harsher jail sentences for abortions in cases of microcephaly.
In Brazil, mosquitoes are a fact of life. But in São Paulo, many residents think mosquitoes won't bother them in the city.
Last week, Across Women's Lives photographer Anne Bailey spent time at a rehabilitation clinic in Recife, Brazil, for babies with microcephaly. She took portraits of a few of them with their parents.
Germana Soares' three-month-old son Guilherme has microcephaly. But she's determined to give him a normal life.
Parents of children with microcephaly in Brazil are now finding each other via the social media platform WhatsApp. Brazilians doctors and scientists also credit the platform for helping them quickly understand the scope of the burgeoning epidemic of birth defects.