New HIV Genetic Evidence Dispels "Patient Zero" Myth
Genome analysis reveals that the AIDS-causing virus circulated in the U.S. as early as 1971
Stories by Dina Fine Maron
Wave of Overdoses with Little-Known Drug Raises Alarm Amid Opioid Crisis
The powerful effects of carfentanil are hard to fight with traditional medications that counteract related drugs and save lives
Generation Zika
It will be at least two years before doctors know how widespread virus-caused birth defects will be in the U.S.
MacArthur "Genius" Grant Winner Battles Drug-Resistant Infections
Dianne Newman, who studies both geology and medicine, says she is a “pied piper” of microbes
U.N. Leaders Plead for Immediate Action against Superbugs
A United Nations meeting opens with a political agreement on antibiotic resistance
Superbug Explosion Triggers U.N. General Assembly Meeting
Antibiotic resistance has grown so dire that it will be the subject of a dedicated global summit later this month
Inventor of Hepatitis C Cure Wins a Major Prize--and Turns to the Next Battle
Lasker Award winner Michael Sofia created a pill to fight an incurable virus. Now he is setting his sights on another
What's Special about the Zika Virus in Singapore?
Sequencing of the strain that has sickened hundreds in the wealthy Asian travel hub reveals some surprises
The Secret to Human Speed
New insights into the biomechanics of sprinting could give athletes a leg up at the Olympics
![How Elite Sprinters Run So Fast [Video]](https://static.scientificamerican.com/sciam/cache/file/4967267A-16B8-4881-85808E0D297DDB53_agenda.jpg?w=275&h=154&fit=crop)
How Elite Sprinters Run So Fast [Video]
Scientists study the stride of Olympic athlete Mike Rodgers
Dear FIFA: There Is No Scientific Test to Prevent Age Fraud
Soccer federation’s tests to combat “age doping” and bar suspected older players from youth events should be red carded
How to Reduce Police Violence
Doubts cast on police implicit bias training
What's in the Water in Rio--and What Can It Do to Olympians?
During the Games, sailors will compete with sewage and industrial waste as well as one another, but the dry season offers some relief
U.S. Warns Pregnant Women to Avoid Zika Area in Florida
The CDC issued a travel alert for one-square-mile zone north of Miami
UPDATED: Interactive Graphic: Zika Goes Local in the U.S.
State officials link cases of the virus to local mosquitoes in the mainland U.S. for the first time, setting off a new phase of public response
Zika Mystery Case Raises Questions about New Transmission Route
Utah caregiver infection has prompted a federal investigation
How Elite Sprinters Run So Fast
Scientists study the stride of Olympic athlete Mike Rodgers
Damage to Pea-Size Gland May Cause PTSD-Like Symptoms
Soldiers’ with traumatic brain injury might suffer from undiagnosed but treatable hormonal disorders
The Zika Virus Has Changed Little over 70 Years--So Why Is It a Problem Now?
Scientists have sequenced the genomes of several Zika strains as they look for answers about the virus’s sudden appearance
Unproved Stem Cell Clinics Proliferate in the U.S.
570 sites advertise therapies for sports injuries, autism and MS via direct-to-consumer marketing
