Chinashama Sainvilus is one of three babies born with microcephaly at the Mirebalais Hospital in Haiti in July. Jason Beaubien/NPR hide caption
zika
Wednesday
Friday
Mosquitoes hover around South Korea's bronze medalist Ki Bo Bae during the medal ceremony for archery, held on Aug. 11 at the Rio Games. Jewel Samad/AFP/Getty Images hide caption
Tuesday
Twin girls born with extremely small heads, shrunken spinal cords and extra folds of skin around the skull. Scientists think this skin forms when the skull collapses onto itself after the brain — but not the skull — stops growing. The images of the girls' heads were constructed on the computer using CT scans taken shortly after birth. The girls were infected with Zika at 9 weeks gestation. Courtesy of the Radiological Society of North America hide caption
Monday
A plane sprays pesticide over the Wynwood neighborhood of Miami on Aug. 6. That's just one way health officials are battling back Zika-carrying mosquitoes in the area. Joe Raedle/Getty Images hide caption
A Miami-Dade County mosquito control worker sprays around a school in the Wynwood area of Miami earlier this month. Alan Diaz/AP hide caption
Miami Schools Take Steps To Protect Returning Students From Zika
Wednesday
Containers hold genetically modified Aedes aegypti mosquitoes before being released in Panama City, Panama, in September 2014. Arnulfo Franco/AP hide caption
Florida Keys Opposition Stalls Tests Of Genetically Altered Mosquitoes
Saturday
Puerto Rican OB-GYNs Offer Free Birth Control To Fight Zika
Friday
A health department pickup truck sprays insecticide against mosquitoes in a San Juan, Puerto Rico, neighborhood in January. Alvin Baez/Reuters hide caption
Monday
Vanessa Gomez (left) with her son Ezra, 2, and her friend Cristy Fernandez with her 9-month-old-son River, in the Wynwood neighborhood of Miami. At least 14 people likely caught Zika from mosquitoes in the neighborhood, health officials say. Gomez calls that news "scary," but adds, "we cannot stop living our lives." Marta Lavandier/AP hide caption
With Zika in Miami, What Should Pregnant Women Across The U.S. Do?
Friday
Surgeon General Vivek Murthy looks at a sample of mosquitoes in Orlando, Fla., on Monday. With him is Department of Health and Human Services Secretary Sylvia Burwell and Orange County Mayor Teresa Jacobs. John Raoux/AP hide caption
Thursday
Blood donations in the U.S. aren't routinely screened for the Zika virus. Chris O'Meara/AP hide caption
Friday
Larry Smart, a Miami-Dade County mosquito control inspector, uses a fogger to spray pesticide to kill mosquitoes in an effort to stop a possible Zika outbreak in Miami. Joe Raedle/Getty Images hide caption
Miami Steps Up Mosquito Control Efforts After Suspected Zika Cases
Monday
Zika virus particles (colored purple in this scan) infecting cells. Each particle is about 40 nanometers in diameter. CDC/Smith Collection/Gado/Getty Images hide caption
A Case Of Zika Apparently Spread From A Patient To A Family Caregiver
Tuesday
Aedes aegypti mosquitoes, which have been known to carry the Zika virus, buzz in a laboratory in Cucuta, Colombia. Ricardo Mazalan/AP hide caption
'Nobody Is Immune': Bracing For Zika's First Summer In The U.S.
Friday
A screwworm larva grasps the flesh in a wound with its mouth's tusklike protrusions and screws itself in. Science Source hide caption