Disease

Microscope image of an isolate from the first U.S. case of Covid-19. Viral particles are visible in blue.

WHO Releases Results of First Investigation Into the Origin of Covid-19

The virus was most likely first spread from a wild animal, possibly bats, to an unknown intermediate animal, possibly farm animals, and then to humans

Clothing and soft furnishings were cleaned with machines that used high-pressure steam and formaldehyde to kill germs and vermin.

This London Building Tells the Story of a Century's Worth of Disease and Epidemics

In the borough of Hackney, a 'disinfecting station' ostensibly kept the public safe from the spread of infectious illness

The new study compared 1,131 children between 12 and 15 years old who received two doses of the Pfizer-BioNTech vaccine, and 1,129 who received two doses of a placebo.

Pfizer-BioNTech Vaccine Is Highly Effective at Preventing Covid-19 Infections in Adolescents

In a study of 2,260 children age 12 to 15, no vaccinated kids contracted the virus

Nurse Sandra Lindsay of Long Island Jewish Medical Center in Queens, New York City, received the first Covid-19 vaccine in the United States in December 2020. Here, she is pictured receiving her second dose of the Pfizer vaccine in January.

CDC Study of Vaccinated Frontline Workers Shows Covid-19 Shots Effectively Prevent Infection, Not Just Symptoms

The vaccinated group of participants saw 90 percent fewer cases than if they had not been vaccinated

The genetic lineage of the plague that hit London in 1348 gave Green a data point to track the disease back to its origin.

Did the Black Death Rampage Across the World a Century Earlier Than Previously Thought?

Scholar Monica Green combined the science of genetics with the study of old texts to reach a new hypothesis about the plague

An undated view of the Seven Hills of Bonn by Josephine Butler, who campaigned for sex workers' rights and pushed Parliament to raise the age of consent

Pioneering Victorian Suffragist's Unseen Watercolor Paintings Are Up for Sale

Seven landscape scenes by 19th-century British social reformer Josephine Butler are headed to the auction block

The stories of children who participated in polio vaccine tests became a constant in media coverage, appearing alongside warnings and debates.

The Press Made the Polio Vaccine Trials Into a Public Spectacle

As a medical breakthrough unfolded in the early 1950s, newspapers filled pages with debates over vaccine science and anecdotes about kids receiving shots

A dog walks through a favela in Recife, Brazil. Many such poor urban areas in the country are hotbeds for visceral leishmaniasis.

Dogs Infected With a Deadly Human Parasite Smell Better to Insect Vectors

New research suggests female sand flies that pass the protozoa that causes visceral leishmaniasis to humans are attracted to affected canines

Pine siskins make up over 40 percent of the birds seen by the Bird Rescue Center of Sonoma County in recent weeks.

Songbirds Are Spreading a Deadly Disease at Birdfeeders

Pine siskins, a type of finch, can spread salmonella bacteria when they poop on the high-traffic platforms

About 31 million people had been fully vaccinated in the U.S. as of Monday, March 8.

CDC Releases Guidelines for People Vaccinated Against Covid-19

The rules allow small gatherings with other vaccinated people or visits to a single household of unvaccinated people

Artificial Intelligence has been used to help caregivers focus on patients most at-risk, sort threats to patient recovery and foresee spikes in facility needs for things like beds and ventilators.

How Doctors Are Using Artificial Intelligence to Battle Covid-19

Software is helping to shape treatment, but experts worry that some tools are approved too soon and others are biased

The authorization is the third Covid-19 vaccine—following Moderna and Pfizer-BioNTech's mRNA vaccines—approved for use in the United States.

FDA Approves Johnson & Johnson Vaccine, Another Valuable Tool Against Covid-19

New vaccines increase the total supply and meet the needs of different communities

Now that several Covid-19 vaccines have been shown safe and effective in adults, the producers can begin clinical trials in adolescents.

Why the Covid-19 Vaccine Rollout Will Be Different for Kids

Pfizer expects to release the first data about vaccine efficacy and safety in adolescents by this summer

The Fever That Struck New York

The front lines of a terrible epidemic, through the eyes of a young doctor profoundly touched by tragedy

Dementia is "the impaired ability to remember, think or make decisions that interferes with doing everyday activities," per the CDC.

Large Study Shows People With Dementia Are at Higher Covid-19 Risk

The condition may present both physical and social risk factors that make transmission more likely

If approved, the Johnson & Johnson vaccine could become available as soon as March.

Johnson & Johnson Applies for FDA's Emergency Use Authorization for Covid-19 Vaccine—Here's Why That Takes Time

Independent experts will review data from over 40,000 trial participants and meet on February 26 to make a recommendation

ENGS peaks in March during the dry season and researcher’s suspect that something within the chimps’ biology or in their environment is prompting the disease

The Mysterious Cause of a Deadly Illness in Sanctuary Chimps Revealed

Researchers identified the 100 percent fatal pathogen as epizootic neurologic and gastroenteric syndrome or ENGS

A patient holds a sample test tube for Chlamydia testing.

How Covid-19 Has Hurt the Effort to Track STDs

As gonorrhea, syphilis and chlamydia have hit their highest marks in decades, many STD contact tracers have shifted to work on the pandemic

Passengers need to eat and drink on a long-haul flight, which means they remove their masks and risk spreading or catching Covid-19.

What One Covid-19 Cluster on an Airplane Tells Experts About Risk Factors While Flying

When one person with Covid-19 took an 18-hour flight from Dubai to New Zealand, several people got sick

Currently accessible Covid-19 vaccines seem to protect people against the emerging variants so far.

What Experts Know About the Current Coronavirus Variants

The appearance of highly transmissible versions of the pandemic coronavirus has the world's medical community on high alert

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