Disease
Discovery of Omicron in New York Deer Raises Concern Over Possible New Variants
White-tailed deer could become a reservoir for Covid-19, putting people and animals at risk
What You Need to Know About Covid Masks in the Age of Omicron
From what to wear to how to avoid counterfeits, experts weigh in on the latest advice about masks and Covid-19
Ancient Toilet Unearthed in Jerusalem Shows Elite Were Plagued by Intestinal Worms
Mineralized feces chock-full of parasitic eggs indicate that it wasn’t the lower classes alone who suffered from certain infectious diseases
Seven Key Questions About Omicron Answered
As the variant spreads and more studies have been done, experts share what they know
Lyme-Spreading Ticks May Thrive in Warmer Winter Conditions Across North America
In a new study, insects carrying the disease were more likely to survive cold or fluctuating temperatures than their uninfected peers
From Korean Pear Juice to Clove Extract, Scientists Put Hangover Cures to the Test—but None Worked
Researchers examined 23 different at-home treatments for side effects of heavy drinking
Outdoor Pet Cats Are Spreading a Brain Parasite to Wildlife
It is one of the most common parasites in the world and has infected approximately one-third of people globally, including some 40 million Americans
Six Questions About Waning Immunity to Covid-19 Answered
Experts weigh in on when a reduced immune response occurs and how boosters can help restore defenses
Catherine the Great Letter Extolling the Virtues of Vaccination Is Up for Auction
The Russian empress, who was inoculated against smallpox in 1768, was an early proponent of the practice
CDC Panel and FDA Authorize Covid-19 Boosters for All Adults
Americans 18 and older will be eligible for a booster shot of their choice, pending approval from CDC Director Rochelle Walensky
How the Ancient Romans Went to the Bathroom
A new book by journalist Lina Zeldovich traces the management of human waste—and underscores poop's potential as a valuable resource
Could Skin Patches Be the Future of Covid Vaccines?
The device might survive longer storage times and pose a better option for people afraid of needles
In 19th-Century Gibraltar, Survivors of a Deadly Virus Used 'Fever Passes' to Prove Their Immunity
Should historic health officials' response to yellow fever outbreaks on the Iberian Peninsula serve as a model for modern pandemic management strategies?
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
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
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
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
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
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.
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
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