Disease

An illustration of Legionella bacteria, the cause of Legionnaires' disease

Why Reports of Legionnaires' Disease Are on the Rise in the United States

Though less common than in the past, Legionella bacteria and other dangerous pathogens still lurk in drinking water

A father and his daughter engage in a video chat with their doctor.

Should Parents Test for Covid if Their Kid Might Just Have a Cold?

Experts weigh in on when students with runny noses, fevers, and coughs should be quarantined and checked

A woman with anorexia gets ready to weigh herself.

How Patients With Eating Disorders Have Been Affected by the Pandemic

A recent study suggests that worries related to Covid-19 may exacerbate conditions including anorexia and binge eating

The discoveries of these three Nobel laureates “saved millions of lives worldwide,” one Nobel committee member said.

Nobel Prize in Medicine Awarded to Three Scientists Who Discovered Hepatitis C

The contributions of these Nobel laureates helped identify, test, and treat hepatitis C

Woodrow Wilson, seen here at the start of the Paris Peace Conference in January 1919, never publicly acknowledged the pandemic's toll on his country.

What Happened When Woodrow Wilson Came Down With the 1918 Flu?

The president contracted influenza while attending peace talks in Paris, but the nation was never told the full, true story

In southern Italy, two varieties of olive trees, some infected with a disease called Xylella fastidiosa, a bacteria carried from tree to tree by a little bug, and some resisting the infection

Why Tree-Killing Epidemics Are on the Rise

Globetrotting pathogens have caused forest-felling disasters that scientists are doing their best to contain

School children are spaced apart in one of the rooms used for lunch at Woodland Elementary School in Milford, Massachusetts on Sept. 11, 2020.

Exactly How Far Should You Distance From Others to Avoid Covid-19?

The CDC recommends 6 feet or more, the WHO about half that distance, but experts say the science is far from settled

Some Covid-19 patients are reporting that foods including coffee, chocolate and red wine smell awful.

Why Covid-19 Patients Are Suffering From Distorted and Phantom Smells

An increasing number of patients are reporting awful scents that aren’t present

A doctor checks the temperature of a child at a mobile clinic.

What Happens When Children's Covid-19 Symptoms Won't Go Away

Some parents say their kids have been sick for months, and experts aren't sure what's going on

Green lasers pointed at a plastic mannequin head wearing a face shield show how the droplets from a cough or sneeze escape around the sides.

Face Shields and Valved Masks Don't Fully Stop the Spread of Aerosols

A new visualization shows how droplets from a cough or sneeze escape around the sides of a plastic face shield

University of Arizona leaders were able to prevent a potential Covid-19 outbreak by testing wastewater.

University of Arizona Stops a Covid-19 Outbreak by Following the Feces

After wastewater monitoring detected the virus in a dorm’s sewage, the school discovered and quarantined two asymptomatic infections

Commuters wearing face masks walk to work in Tokyo on April 7.

How a Japanese Museum Is Documenting Life During Covid-19

New exhibition features everyday objects that would have been unfamiliar before the pandemic

A young boy in Benin, in West Africa, receives a bed net designed to help prevent malaria.

How Covid-19’s Spread Could Drive an Increase in Malaria Deaths

Health professionals worry the pandemic could stress resources and lead to misdiagnosis in Africa

In spring, fur farms in the United States had raised biosecurity measures by increasing the use of personal protective equipment like masks, gloves and rubber boots.

Covid-19 Reaches Mink Farms in Utah

Veterinarians have confirmed five cases in U.S. minks, but suspect the actual number is higher

Concert attendees cheer at an event in Porto, Portugal, on August 15, 2020.

What Super-Spreading Events Teach Us About Protecting Ourselves From COVID-19

Scientists are increasingly finding that a small number of people may be the source of many cases

Viruses, notably influenza A and Morbillivirus, cause mass die-offs with striking head counts.

Mass Die-Offs of Marine Mammals Are on the Rise

Viral and bacteria outbreaks are increasingly causing fatalities in a variety of species, including seals and dolphins

Hopefully the new repellents will smell better too!

The Secret Behind New Insect Repellent's Potent Punch Is Found in Grapefruit

The EPA just approved nootkatone, a chemical found in grapefruit and cedars that kills and repels ticks, mosquitoes and other insects

A customer talks to a waiter in a mask while eating his meal at a table divided with transparent panels in Bangalore, India.

What Scientists Know About Airborne Transmission of the New Coronavirus

Aerosol experts, from engineers to doctors, weigh in on the ability of tiny droplets to transmit the virus that causes COVID-19

A "wine window" in Florence

Centuries-Old 'Wine Windows' Open for Business in Florence

A low-risk alternative to curbside pickup, the portals may have helped fight an outbreak of bubonic plague in the 1630s

As natural space is converted to cropland, pastures, cities and suburbia, certain short-lived animals like pigeons and rats, thrive.

In Cities and Farms, Disease-Carrying Animals Thrive

When humans dominate wild land, disease-carrying animals take over and biodiversity suffers

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