What's thwarting Brazil's battle against Zika virus?
Economic and public policy factors cripple nation's ability to manage outbreak and the surge in birth defects likely linked to it
Brazil
Volunteers get injected with virus to help find vaccine
To help test drugs for dengue, and soon Zika virus, some people are getting infected on purpose
How likely are birth defects from Zika virus?
New study is the first to estimate how many babies may be born with microcephaly linked to Zika virus
Tens of thousands protest urging ouster of Brazil's president
Brazilians ratcheted up the heat for the embattled president, turning out by the thousands for demonstrations across the country
Deadly mudslides, flooding in Brazil
Heavy downpours hit low-income neighborhoods on Sao Paulo's outskirts
Meat-carving waiter loses control of knife, carves woman
Diner at a restaurant in Texas who was accidentally stabbed by a waiter says months later insurance still hasn't paid her medical tab
Penguin travels thousands of miles each year to visit man who saved him
Brazilian man and a little Magellanic South American penguin have become unlikely best friends
Is Colombia on the verge of a Zika-linked wave of birth defects?
Three newborns with birth defects and traces of Zika virus have been identified by researchers in Colombia
New twist in case of Facebook exec jailed in Brazil
Executive was detained in dispute with police over access to WhatsApp data
Facebook executive arrested in Brazil over data access
Executive was detained for refusing police requests to access data from Facebook's WhatsApp messaging app
CDC investigates more U.S. Zika cases possibly transmitted sexually
The new cases include two pregnant women, notable since Zika has been linked to microcephaly in newborns
Can scientists prove Zika causes birth defects?
Health officials say there is strong evidence linking the virus to microcephaly, but what will it take to know for sure?
U.S. woman bearing twins scared of Zika after Puerto Rico trip
The virus has been linked to birth defects in Latin America and pregnant women in the United States are taking heed
Pope suggests tolerance for contraception in Zika crisis
Pope Francis responds to a question about whether abortion or birth control might be a "lesser evil" during Zika outbreak
What you need to know about Zika virus
"We're seeing rapid spread of the virus and we need to act now," one expert says
Larvicide linked to microcephaly? Experts debunk claim
Health officials and independent scientists say there is no evidence to back "Zika cover-up" conspiracy theories
Genetically modified mosquitoes win support in Zika fight
World Health Organization says controversial method may be needed to help stop spread of disease
Paralysis syndrome rises along with Zika cases
World Health Organization reports an increase in cases of Guillain-Barré syndrome, a rare neurological disorder possibly linked to Zika virus
Zika-related abortion debate in Brazil intensifies
Should women who have the disease known to cause crippling birth defects be allowed to terminate their pregnancy? Near-ban in Catholic country debated
How does Zika virus spread?
There's a lot of concern and confusion about how the virus is transmitted; here's what we know so far
U.S. Olympic Committee tries to ease athletes' Zika fears
A memo to prospective U.S. Olympians said the Zika virus outbreak in Brazil is being closely monitored
Health officials: Here's what will help stop Zika virus
Experts tell Congress the most important steps for keeping Zika at bay in the U.S.
What does the future hold for babies with microcephaly?
Zika virus sparks worries about thousands of babies born with small heads; impact may range from normal health to crippling disability
Brazilian doctor on connecting dots between Zika, birth defects
Dr. Vanessa van der Linden started seeing cases of microcephaly last August, right around the same time her mother -- also a doctor -- was seeing the same defect
Carnival in Rio 2016
Members of Brazil's elite samba schools paraded in the pre-Lenten celebration - a colorful explosion of music, costumes and dance
Live
Iran claims 4 tankers hit mines in Strait of Hormuz
Live
Live Updates: Trump campaigns in South Carolina and more
El-Sayed's faith, family under scrutiny in campaign. Here's what we know.
Hegseth fires Pentagon's top military planner over alleged leaks
Investigation
Whistleblower says DEA let fentanyl pills hit the streets
U.S. citizens included on DOJ list of 400 alleged noncitizens, Washington says
Investigation
Classified material missing from Epstein files, documents suggest
Russian strikes kill 14 in Ukraine but local truce brings some hope
