Disease

The Panamanian golden frog is now extinct in the wild due to a disease caused by a fungus known as Bd or chytrid

Amphibian Plague Led to Malaria Surge in Humans

A new study marks the first time the frog pandemic has been linked to human health

A rise in cases of severe respiratory illness could be due in part to children returning to school and other public places this year. 

Virus Linked With Rare Polio-Like Condition in Children on the Rise, CDC Warns

This year, there have been 13 confirmed cases of the condition, which weakens muscles and reflexes

A pharmacist prepares to administer a Covid-19 booster shot to help protect a patient against the Omicron subvariants BA.4 and BA.5.

Four Big Questions About the New Covid-19 Boosters, Answered

The FDA and CDC recently recommended new boosters to target the Omicron subvariants. Here’s what you need to know about them.

Joy Milne can smell Parkinson's Disease.

Woman Who Can Smell Parkinson’s Helps Develop a Skin Swab Diagnostic Test

The test, which would be the first of its kind for this disease, can make a diagnosis in about three minutes

Aerial view of the usually submerged ruins of the village of Aceredo in northwestern Spain on February 15, 2022

This Summer’s Drought Is Europe's Worst in 500 Years. What Happened Last Time?

The 1540 megadrought brought mass suffering to the continent, but European society quickly bounced back

An inhaled Covid-19 vaccine is displayed at the CanSino Biologics booth at the Hainan International Health Industry Expo in November 2021.

Needle-Free Covid-19 Vaccines Approved in China and India

Doses inhaled through the mouth or nose might provide better protection against mild infections and transmission, preliminary studies show

People line up for Covid-19 vaccines in Washington, D.C., last December. The Food and Drug Administration approved updated booster shots Wednesday. 

CDC Recommends New Covid-19 Boosters Targeting Omicron Subvariants

The updated shots could be available within days

A registered nurse measures out a monkeypox vaccine in Miami, Florida.

Six Big Questions About the Monkeypox Virus, Answered

The United States recently declared the monkeypox outbreak a public health emergency. Here’s what you need to know about the disease

Archaeologists excavate the remains of friars buried at the former Augustinian friary in central Cambridge.

Why Were Medieval Monks So Susceptible to Intestinal Worms?

Friars in Cambridge, England, suffered from these parasites at nearly double the rate found among average unwashed citizens

Long Covid is a morass to figure out, but the answers are important for the multitudes still suffering from an infection that happened to them months or even years ago.

How Long Will It Take to Understand Long Covid?

Covid long-haulers experience a litany of symptoms, and researchers have proposed a variety of theories to explain them

A tick runs over a human hand.

Large Lyme Disease Vaccine Clinical Trial Begins in U.S. and Europe

If approved, it would be the first new shot to combat the misunderstood disease in the U.S. in 20 years

Jynneos monkeypox vaccine

U.S. Declares Monkeypox a Public Health Emergency

The announcement comes as nationwide case counts reach 7,000

The protein-based Covid-19 vaccine from Maryland biotechnology company Novavax. 

FDA Authorizes Novavax Covid-19 Vaccine for Emergency Use

The shots work similar to the way that vaccines against influenza and shingles work

Seals in Bar Harbor, Maine

Seal Strandings in Maine Linked to Bird Flu

Four stranded pinnipeds tested positive for the avian influenza H5N1

Thousands of Northern Gannets gather nest material as they prepare for the new breeding season on the Bass Rock.

Avian Flu Hits U.K.’s Seabird Colonies

Thousands of wild birds have died

The yellow fever mosquito, Aedes aegypti, spreads dengue fever, Zika, chikungunya and other viruses that infect humans.

Dengue Fever and Zika Virus Make Humans More Attractive to Mosquitoes

Scientists conducted human and mouse studies to find the skin bacteria responsible for the draw

As of June 15, the World Health Organization had recorded a total of 2,103 confirmed monkeypox cases in 42 countries. Pictured: a colorized transmission electron micrograph of monkeypox virus particles (green) cultivated and purified from cell culture

History of Now

What You Need to Know About the History of Monkeypox

Mired in misconception, the poxvirus is endemic in certain African countries but was rarely reported in Europe and the U.S. until recently

While many strains of E. coli are harmless, some can cause illness.

Ancient Strain of E. Coli Found in 16th-Century Mummy

Researchers identified the bacterium in fragments from a gallstone

The gravestones say that the women died of “pestilence.”

Where Did the Black Death Start? Thanks to Ancient DNA, Scientists May Have Answers

The devastating disease possibly began in what is now northern Kyrgyzstan

A baby receives a mallaria vaccine from a nurse at the maternity ward of the Ewin Polyclinic in Ghana in 2019.

Why Did It Take 35 Years to Get a Malaria Vaccine?

The parasite’s complex biology played a role in the delay, but experts say there was also a lack of urgency and funding

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