Disease

More than half of koalas admitted to Australia Zoo Wildlife Hospital are sick with chlamydia. 

Australia Begins Vaccinating Hundreds of Koalas Against Chlamydia in New Trial

The infection affects at least half of koalas living in southeast Queensland and New South Wales

The antiviral drug molnupiravir is in Phase 3 trials.

Seven Important Questions About Covid Antivirals Answered

New medicines may stop the virus from replicating so your immune system can fight a few viral soldiers instead of an army

In 2019 alone, malaria killed 400,000 people, with most individuals residing in sub-Saharan Africa. Children under five are more vulnerable to the detrimental effects of malaria, and most deaths occur within this age group.

The World Health Organization Endorses the World's First Malaria Vaccine

Four doses of the vaccine Mosquirix prevents the risk of the mosquito-borne disease by 40 percent

A public art installation commemorating Americans killed by Covid-19 on the National Mall featuring more than 650,000 small plastic flags, some with personal messages to those they’ve lost.

More Than 700,000 Americans Have Now Died of Covid-19

There have been over 100,000 deaths since mid-June despite widespread vaccine availability

A new study reveals life expectancy in many counties fell by more than 6 months from 2019 to 2020 due to the Covid-19 pandemic.

In Western Europe, Covid-19 Caused the Biggest Drop in Life Expectancy Since World War II

The study authors say the pandemic may have an even greater impact on life spans in less developed countries that were not included in the research

Children head back to school in August even as the Covid-19 delta variant makes its rounds. For reasons that aren’t fully understood, kids do not get as sick from Covid-19 as adults do. The role of schools in fostering spread of the virus is also under study.

Why Don't Kids Tend to Get as Sick From Covid-19?

Some children have been hospitalized and some have died, but at a tiny fraction of the adult rate. Scientists are trying to find out why.

Early trials show a second dose of the J&J Covid-19 vaccine after six months later provides a promising antibody response.

Johnson & Johnson Says Extra Shot Gives Promising Immune Boost

Those who got the one-shot Covid-19 vaccine could benefit from a booster after eight months, according to the company

So far, researchers have discovered 100 plague victims buried in 60 graves.

Construction in Poland Reveals Graves of 18th-Century Plague Victims

The Great Northern War plague outbreak peaked between roughly 1708 and 1712

Individuals wear masks while shopping at a grocery store in Los Angeles. Masks help prevent breakthrough infections.

Six Important Things to Know About Breakthrough Infections

As the Delta variant likely drives more cases of Covid-19 in vaccinated individuals, experts weigh in with helpful information

The fungus Hemileia vastatrix strikes a plant on a coffee farm in Aquires, Costa Rica.

New Study Shows Climate Change May Increase the Spread of Plant Pathogens

Models suggest that higher latitude crops will experience higher infection rates and a greater number of threats

The outbreaks happened earlier in the year between January and April in Washington D.C. and Texas. While both outbreaks were unrelated to each other, they both occurred within long-term care facilities and hospitals where patients had extended stays.

CDC Reports Several Cases of Drug-Resistant Fungal Infection in Two U.S. Cities

In total, five cases of the fungal infection were resistant to three known classes of antifungal medications

Via Getty: "A state wildlife veterinarian inspects a European starling carcass before shipping it to the University of Georgias Southeastern Cooperative Wildlife Disease Study (SCWDS) from the Kentucky Department of Fish and Wildlife Resources headquarters on July 2, 2021."

Mysterious Bird-Killing Illness Spreads to More Mid-Atlantic States

Researchers rule out several pathogens but still don’t know what is causing the deaths

A researcher looks at Artemisia annua seedlings. The plant contains malaria-fighting compounds.

World Health Organization Certifies China as Malaria-Free

In the 1940s, the country recorded 30 million cases of malaria each year

Ancient DNA and proteins gathered from the specimen's bones and teeth revealed the presence of Yersinia pestis.

Oldest Strain of Plague Bacteria Found in 5,000-Year-Old Human Remains

Unlike the 'Black Death' in the 14th century, the ancient infection probably did not spread quickly between people

This transmission electron microscopic image shows the pandemic coronavirus SARS-CoV-2.

Over 20,000 Years Ago, a Coronavirus Epidemic Left Marks in Human DNA

The oldest modern coronavirus is about 820 years old, but humanity has been fighting similar viruses for millennia

CRISPR allows scientists to cut and insert small slices of DNA with precision, illustrated here.

Early Study Shows Promise of CRISPR Injection to Treat Rare Disease

Three people who received a high dose of the gene editing tool in a clinical study saw significant improvement in their condition

Officials at the U.S. Centers for Disease Control and Prevention anticipate that Delta will become the dominant variant in the United States within the next few months.

Covid-19 Delta Variant Emerges as Primary Threat Around the World

A surge of cases in the United Kingdom suggests that Delta is the most transmissible variant yet identified

Scholars used a newly developed technique to test skeletons' teeth for the presence of Yersinia pestis, the pathogen responsible for the plague.

Why Weren't These Black Death Victims Buried in Mass Graves?

New research suggests some Europeans who died of the bubonic plague were individually interred with care

A Covid-19 restrictions sign hangs outside a supermarket in Austin, Texas. Lauren Ancel Meyers at the University of Texas at Austin has shared her team’s modeling results with city officials who make decisions about Covid-19 measures.

What Data Scientists Learned by Modeling the Spread of Covid-19

Models of the disease have become more complex, but are still only as good as the assumptions at their core and the data that feed them

Part of a clinical study called Project S, a small town in Brazil set out to vaccinate its entire adult population. With 95% of adults vaccinated, the city has seen a steep decline in Covid-19 cases, hospitalizations and deaths.

Mass Vaccination Success in This Small Brazil City Shows Promise of Low-Efficacy Vaccines

In Serrana, 95 percent of adults received the CoronaVac vaccine, which has a 50% efficacy rate. Now, the city is ready to reopen

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