Who needs to worry most about the Zika virus and what can you do? Here are some answers to the most pressing questions about Zika.
Harris County, Houston, expects to be a hotspot for Zika when it finally takes hold in the U.S. Here's how it's preparing.
Victoria Eljach is doubly at risk of Zika — from her own travel and her husband's. Now she's pregnant, and Zika's headed her way in Houston.
It only takes 15 minutes to drive from Houston's glittering medical center to the Fifth Ward, straight from the First World to the Zika zone.
The CDC is retesting 409 specimens that tested negative in Washington, D.C., last year, and so far two have already come back positive.
Where’s Zika going next? We tracked how the virus came seemingly out of nowhere and broke all the rules
Brownsville, Texas, is now a 'yellow' Zika virus zone that pregnant women should avoid if possible, health officials said Wednesday.
The Zika virus damages 6 percent of babies if a pregnant woman is infected, and even women who had no symptoms from the infection can be affected.
The Zika virus is no longer actively spreading in Miami’s South Beach. But just as Miami's Zika zone lifted, Texas announced four more local cases.
A surprising new study finds that mosquito populations have exploded in parts of the U.S. — but not because of a warming climate.
Florida state officials declared a second outbreak of Zika over in the Miami area, this one in a neighborhood north of Miami known as Little River.
Zika has now caused two separate outbreaks in the Miami area, infecting tourists from Texas, New York and Taiwan. Americans are starting to worry.
Texas reported its first home-grown case of Zika virus infection Monday — making it the second U.S. state with mosquitoes spreading the virus.
Babies born looking normal and healthy after a Zika infection are developing smaller-than-normal heads months later, doctors report.
The change in status from a public health emergency of international concern to a longer-term problem is not a "downgrade" a top official said.
Two studies show that Zika virus may not be working alone in causing strange infections in South America: it may be getting help from other viruses.
Zika's hitting the worst possible group in Puerto Rico — women of childbearing age, a new study finds.
Mosquitoes that stay in and around houses attack women more than men, which may explain why viruses such as chikungunya and Zika do, too.
Researchers have found a possible treatment for Zika virus as a U.S. team started a new trial of a Zika vaccine Monday.
People 'liked' and shared the most misleading Zika virus stories on Facebook more than the accurate posts, a new study finds.
The Zika virus can get into the testes of mice, shrinking them and damaging them so badly that sperm production drops, researchers report.
Puerto Rico has reported its first case of a baby born with microcephaly as a result of a Zika infection.
Zika rarely makes adults seriously ill, but it can get into the brains and bodies of developing fetuses and cause catastrophic damage.
Federal health officials have made a new color-coded map for Miami and urged all pregnant women to consider postponing travel to Miami-Dade County.
The first babies born with birth defects caused by Zika are turning 1 in Brazil, and their moms are strugglign to get help raising them.
Congress finally approved Zika funding at the end of last month. Now it's entered the slow, bureaucratic world of the federal funding process.
A woman infected with Zika had evidence of the virus in her vagina for weeks, researchers reported Tuesday.
Florida has a new Zika zone — a one square mile area where the Zika virus is actively infecting people, state officials said Thursday.
The drone program is among a batch of inventive solutions for fighting Zika funded by the U.S. Agency for International Development.
Zika virus cases are soaring in Asia and it's not clear why. It;s not the same strain as the one affecting the Americas.
With a little bug spray and a lot of bravado, visitors and residents alike brave the threat of Zika to enjoy Miami Beach.
The race to find protection against the Zika virus is fueled by something often missing from tropical disease research: the potential for big profit.
There are new recommendations on pregnancy, sex and the risk of Zika virus.
The Zika virus doesn’t seem to hit children any harder than it does adults, government researchers said Friday.
The CDC issued a travel advisory for Southeast Asia as Thailand confirmed it had found two cases of birth defects linked to the Zika virus.
The Zika virus may spread in sweat and tears in some cases, doctors cautioned Thursday.
'We’ll be able to put that money towards the Zika fight as soon as the new fiscal year begins,' said a Health and Human Services Department spokesman.
Florida health officials who have been testing thousands of residents for Zika virus have found another infection: dengue virus.
From babies who crawl way too soon to infants who cry 24 hours a day, Zika's effects are startling the doctors treating the infected babies.
Two types of pesticides were needed to kill both Zika-carrying adult mosquitoes and their larvae in Florida, the CDC reported.
The first outbreak of Zika virus in the continental U.S. was declared over, even as more Zika-infected mosquitoes were found in a nearby Zika zone.
The type of study, called a case-control study, can rule out other possible causes of microcephaly such as chemicals or pesticides.
The first official outbreak of Zika virus infection in the continental U.S. may be over as soon as next week, officials say.
Angry protesters interrupted a meeting of the city council in Miami Beach, shouting “No more naled” and demanding an end to mosquito spraying.
Florida health officials said Tuesday they found six new locally transmitted cases of Zika virus, bringing the state’s total to 70 cases.
Doctors still can't say how a dying Utah man gave Zika virus to his son last July but said the virus may pass directly from patients to caregivers.
Italian researchers say they’ve found evidence Zika can affect the brains of adults, and may damage memory.
Tools to fight mosquitoes that can carry the virus range from low-tech traps to high-tech genetically modified insects.
The spraying had been delayed a day after worried and angry residents complained to city officials and organized a small protest outside City Hall.
The arrival of Zika virus in Brazil doubled the rate of birth defects involving the nervous system, including microcephaly, researchers report.
Federal agencies are borrowing money from other programs to fight Zika. One expert says that's just giving Congress an excuse not to provide funds.
As senators traded barbs about whom to blame for the lack of funding, Florida health officials said they'd found seven more home-grown cases of Zika.
The WHO says more studies are showing that sex may pass along Zika more often than thought, and it’s better to be careful. Plus more Florida cases.
Singapore reported another big batch of Zika cases Sunday, bringing its total count in just over a week to 215.
Florida health officials on Thursday blamed the popular tropical plants known as bromeliads for helping to breed Zika mosquitoes.
Rates of Guillain-Barré skyrocketed in countries hit by Zika virus epidemics — by as much as 877 percent in Venezuela,health officials say.
Singapore, a city-state about two-thirds the size of Washington, D.C., has 115 confirmed cases of the viral infection spread by local mosquitoes.
The Zika virus not only causes severe brain damage but it causes hearing loss in some babies as well, Brazilian researchers reported Tuesday.
The Aedes mosquitoes that spread Zika can leave little Zika bombs in their eggs, helping the virus survive dry spells.
A drug already on the market to treat worm infections and another being tested against liver diseases may also help treat Zika virus infections.
Tiny Singapore says it has its own outbreak of Zika virus.
Zika is primarily spread through the Aedes mosquito, known as a "container-breeding" bug because it likes to lay eggs in or near standing water.
Since Congress went on a summer break, Zika has started appearing in homegrown outbreaks in Florida. The president says that's a serious problem.
All blood donations should be tested for Zika virus, the Food and Drug Administration said Friday.
A new study provides more evidence that the Zika virus spreads sexually, and shows how.
No one appears to have caught Zika at the Olympics, the World Health Organization said Thursday.
A Brazilian baby with brain damage caused by Zika virus stayed infected for more than two months after he was born, doctors reported Wednesday.
Florida reported a new homegrown case of Zika virus Wednesday, this one in Palm Beach County.
Missing brain tissue. Deformed spinal cords. Folded skills. The images of Zika's brain destruction are horrifying.
Zika virus has turned up in a new part of Florida, and experts say it's almost certainly not done spreading.
Florida’s got a new case of Zika virus, this one on the Gulf coast, state officials said Tuesday.
This is how the Zika virus causes severe and often horrific birth defects. Warning: Some images may be disturbing.
She never saw the mosquito that bit her and gave her Zika. And she had no way of knowing it would cost her a longed-for first pregnancy.
Zika is spreading locally in Miami Beach, and has infected three tourists.
Puerto Rico reported its first death on Friday from a paralyzing condition that developed from a Zika infection.
Florida health officials declined to confirm reports Thursday that Zika has spread locally in Miami Beach.
The Zika virus, previously thought only to be a big threat to developing babies, might also affect adult brains, researchers reported Thursday.
Thirty people have been diagnosed with a rare paralyzing condition caused by Zika virus infection in Puerto Rico, and the CDC says to expect more.
A patient in Texas appears to have caught Zika in Florida, making for the first state to state spread of the virus.
Puerto Rico reported 1,914 new cases in the past week, for a total of 10,690 since the first one was reported in December.
The new cases bring the total of such cases to 28. Zika is spread by mosquitoes and can cause microcephaly and other birth defects.
A newborn girl born with microcephaly has become Texas' first death related to the Zika virus. KPRC's Sofia Ojeda reports.
Gov. Rick Scott announced four new locally transmitted cases in the Miami area, raising the total to 21.
The first locally-contracted case of the Zika virus has been confirmed in the Cayman Islands, the Caribbean nation's health department said.
Gov. Rick Scott said the state still believes active transmissions of the virus are taking place only in a 1-square mile area in Miami-Dade County.
What you need to know about Zika virus and pregnancy.
With Florida's Gov. Rick Scott at his side Thursday. CDC Director Dr. Tom Frieden pulled no punches in describing the threat that Zika presents.
The race to develop a safe and effective vaccine against the Zika virus got one step closer Thursday.
These tips from the CDC can help you take precautions against Zika.
In addition, seven dependents of military personnel have been infected, a Pentagon source told NBC News.
Response teams have been deployed after the United States' first known Zika transmissions were found in a Florida neighborhood.
Home-grown Zika cases started showing up last Friday, when the first four were confirmed. Eleven others have been added in just four days.
The Florida Department of Health has identified 10 more people who likely contracted Zika virus locally — bringing the total to 14.
The four cases of Zika infection in Miami, likely the result of bites from local mosquitoes, may be just the beginning of the spread of the virus in the US.
Florida's governor says the state has concluded that four mysterious Zika infections likely came from mosquitoes in the Miami area.
The order to stop taking in blood comes as health officials continue to investigate four possible cases of local transmission of the Zika virus.
As many as 1.65 million women in Latin America could be infected with Zika while pregnant, meaning tens of thousands of pregnancies could be at risk,
Florida has a second possible case of Zika spread locally, and scientists said they may have found a new species of mosquito can transmit the virus.
It's winter in South America and Zika fears there are winding down, just as mosquito season starts in North America. Here are some Zika answers.
Florida health officials are checking on the latest case of Zika there and yet Congress went home without spending the money to fight it.
Florida health officials said Tuesday they were investigating a possible case of Zika that wasn’t carried back by a traveler.
An elderly patient who died with a Zika virus infection in Utah may have infected a relative. Doctors are not sure how it happened.
New York City Health officials say the woman contracted Zika during a recent trip to an affected area then transmitted the virus to her partner shortly after her return to New York.