Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, talks with Mary Louise Kelly about how the Zika virus may spread.
The virus was first identified in 1947 in a rhesus monkey in the Zika Forest. Our maps show how it spread slowly at first, then last year began a rapid invasion of the Americas.
The Centers for Disease Control and Prevention is involved on nearly every front, from diagnostics to the study of a possible link to microcephaly and Guillain-Barre syndrome.
The census showed no Christians in 1951. Today there are nearly 400,000. One reason: Some evangelical groups offer aid — desperately needed after the earthquake — and also seek converts.
The CDC reported the first case of sexually transmitted Zika virus in the U.S. related to the current outbreak. It's happened before. Here's what we know about how the virus could move between people.
Researchers are looking into the possible link to birth defects — and suspected cases of hearing loss in adults. First they need a fast test to identify the virus.
It depends who you ask. But Venezuela could be the next ground zero for Zika. And government information is in short supply. So are doctors, medicines and even mosquito repellent.