6,281 results
6,281 results for: Virus
- Health & Medicine
How coronavirus vaccines still help people who already had COVID-19
Coronavirus vaccines give the immune system of previously infected people a boost, probably giving those people better protection against new variants.
- Health & Medicine
What does the first successful test of a pig-to-human kidney transplant mean?
For the first time, a pig organ was successfully attached to a human patient. It’s a step toward vastly increasing the supply of organs.
- Health & Medicine
Colds and other common respiratory diseases might surge as kids return to school
Recent historically low levels of some respiratory illnesses may lead to outbreaks this fall and winter, creating disruptions as kids return to school.
- Health & Medicine
Pfizer says its COVID-19 vaccine is safe and works well for kids ages 5–11
A lower dose of the vaccine produced as many antibodies in elementary school–age kids as a full-dose shot did in teens and young adults.
- Health & Medicine
Why only some people will get COVID-19 booster shots at first
In the United States, boosters may next go to people 65 and older, those at high risk for severe disease and people whose jobs put them at high exposure risk.
- Animals
Viruses can kill wasp larvae that grow inside infected caterpillars
Proteins found in viruses and some moths can protect caterpillars from parasitoid wasps seeking a living nursery for their eggs.
- Health & Medicine
Why the CDC says it’s crucial to start wearing masks indoors again
While unvaccinated people are driving the spread of the coronavirus, vaccinated people infected with the delta variant may also easily transmit it.
- Health & Medicine
New delta variant studies show the pandemic is far from over
The coronavirus’s delta variant is different from earlier strains of the virus in worrying ways, health officials are discovering.
- Health & Medicine
Why it’s still so hard to find treatments for early COVID-19
Small studies, unexpected side effects and incomplete information about how drugs work can stymie clinical trials for drugs that can treat COVID-19.
- Health & Medicine
Schools are reopening. COVID-19 is still here. What does that mean for kids?
Children do get COVID-19, and some become very sick and even die. But the disease’s long-term effects on kids remain uncertain.
- Health & Medicine
The coronavirus cuts cells’ hairlike cilia, which may help it invade the lungs
Images show that the coronavirus clears the respiratory tract of hairlike structures called cilia, which keep foreign objects out of the lungs.
- Health & Medicine
How different COVID-19 testing plans can help keep kids safe in school
As children head back to school in the United States, here’s a look at various testing strategies that could keep kids safe during in-person learning.
