Disease and Illnesses
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
What Scientists Are Learning About Covid-19 Using the Nation's Blood Supply
Labs and blood banks collect millions of blood samples each month, offering a distinctive source of data on the disease
How Covid-19 Precautions Have Kept Flu Cases Low
By this time last year, the U.S. had recorded over 65,000 cases of influenza
Parasite Found in Undercooked Meat and Cat Poop May Be Linked to Rare Brain Cancer
The U.S. sees about 24,000 brain cancer cases annually, compared to 30 million cases of Toxoplasma gondii, so an individual’s cancer risk is low
Ten Innovators to Watch in 2021
These visionaries are imagining an exciting future with chicken-less eggs, self-piloting ships and more
Colorado and California Report First U.S. Cases of Highly Contagious Covid-19 Variant
First discovered in England, the variant appears to be more transmissible but does not cause a more severe case of the disease
The Ten Most Significant Science Stories of 2020
From the rapid development of vaccines for Covid-19 to the stunning collection of an asteroid sample, these were the biggest science moments of the year
How Elvis Helped America Eliminate Polio
The rock star's much-publicized vaccination inspired reluctant U.S. teens to get inoculated
First Case of Covid-19 in a Wild Animal Found in a Utah Mink
The U.S. Department of Agriculture detected the infection while testing wild animals around a mink farm with a Covid-19 outbreak
A Brief History of Human Challenge Trials
For more than two centuries, scientists have been intentionally infecting patients with dangerous diseases in order to learn more
How Researchers Are Protecting Great Apes From Covid-19
Humans who study and care for the primates are taking precautions to prevent the spread of the coronavirus and its unknown effects
The Horse Flu Epidemic That Brought 19th-Century America to a Stop
An equine influenza in 1872 laid bare how essential horses were to the economy
Before WWI, Trench Fever Plagued the Ancient Romans and Napoleonic Soldiers
Long associated with the Great War, the disease actually dates back at least 2,000 years, a new study suggests
How Covid-19 Drove New Polio Cases in Afghanistan
Due to the pandemic, a total of 50 million children did not receive the polio vaccine in Afghanistan and Pakistan
What Is the Best Strategy to Deploy a Covid-19 Vaccine?
Mathematicians are modeling different scenarios for a vaccine rollout to see what may work best
Higher Temperatures Make Some Ticks Pick Humans Over Dogs
The study’s results suggest certain tick-borne diseases could become even more prevalent as climate change heats up the planet
A Resurgence of Measles Killed More Than 200,000 People Last Year
Public health experts worry that vaccine availability will be further stalled by the Covid-19 pandemic
First Evidence of Parasites in Dinosaur Bones Found
A team of paleontologists used CT scans and tissue samples to uncover blood pathogens in an infected titanosaur
Will the Coronavirus Evolve to Be Less Deadly?
History and science suggest many possible pathways for pandemics, but questions remain about how this one will end
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
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