6,291 results
6,291 results for: Virus
- Health & Medicine
What does COVID-19 vaccine efficacy mean?
The initial goal for a vaccine against COVID-19 is to reduce cases of the disease by at least 50 percent in those vaccinated versus those not.
- Health & Medicine
Lung cell images show how intense a coronavirus infection can be
Microscopic views reveal virus particles coating the hairlike cilia of an airway cell from the lungs.
- Health & Medicine
Treatments that target the coronavirus in the nose might help prevent COVID-19
Scientists are developing and testing ways to prevent the virus from settling in prime nasal real estate.
- Health & Medicine
Can supplements really help fight COVID-19? Here’s what we know and don’t know
Unless you’re deficient, there’s little evidence yet for taking Vitamin D and other supplements to treat or prevent a coronavirus infection.
- Health & Medicine
Blood donations show that the United States is still nowhere near herd immunity
Testing donated blood for antibodies to the coronavirus highlights that the vast majority of the United States remains susceptible to infection.
- Health & Medicine
Remdesivir doesn’t reduce COVID-19 deaths, a large WHO trial finds
An international study of more than 11,000 people finds that remdesivir doesn’t prevent deaths from COVID-19, but the drug may still be useful.
- Health & Medicine
Defects in early immune responses underlie some severe COVID-19 cases
Scientists are finding that strong early immune responses to the coronavirus are crucial to protect some people from developing life-threatening symptoms.
- Health & Medicine
In a first, a person’s immune system fought HIV — and won
Some rare people may purge most HIV from their bodies, leaving only broken copies of the virus or copies locked in molecular prisons, from which there is no escape.
- Psychology
‘Deaths of despair’ are rising. It’s time to define despair
A sense of defeat, not mental ailments, may be derailing the lives of less-educated people in the United States.
- Health & Medicine
New coronavirus tests promise to be faster, cheaper and easier
Researchers are developing a smorgasbord of tests to detect RNA and proteins from the virus that causes COVID-19.
- Health & Medicine
Here’s what pausing the AstraZeneca-Oxford coronavirus vaccine trial really means
A coronavirus vaccine trial was paused after a volunteer had a possible adverse reaction. Such routine measures help ensure new vaccines are safe.
- Health & Medicine
A man in Hong Kong is the first confirmed case of coronavirus reinfection
During a 33-year-old man’s first round with the virus, he had symptoms, but not the second time — a hint his immune system protected him from disease.
