While cases are climbing in China, the situation is very different from what it was when Covid-19 emerged five years ago, medical experts say. HMPV has circulated in humans for decades.
Tag: Immune System
What’s Next for the Coronavirus?
Scientists studying the virus’s continuing evolution, and the body’s immune responses, hope to head off a resurgence and to better understand long Covid.
He Had 217 Covid Shots Without Side Effects, Study Finds
Media accounts of a German man’s extreme vaccination history spurred researchers to analyze his immune responses.
U.S. Authorizes a New Round of Covid Boosters
Older Americans and those with weakened immune systems, groups still particularly vulnerable to the virus, may receive additional shots of the reformulated vaccine, federal officials said.
Mpox Often Leads to Severe Illness, Even Death, in People With Advanced H.I.V.
The death rate among these patients is about 15 percent, researchers reported. The virus should be added to the list of opportunistic infections seen in patients with advanced H.I.V., scientists said.
Happy Birthday, Omicron
One year after the variant’s discovery, virologists are still scrambling to keep up with Omicron’s rapid evolution.
A Better Way to Measure Immunity in Children
Some scientists believe that a clearer picture of Covid vaccine efficacy could have emerged sooner if investigators had tracked certain immune cells, not just antibodies.
How the Coronavirus Steals the Sense of Smell
The virus does not infect nerve cells that detect odors, researchers have found. Instead, it attacks nearby supporting cells.
Got a Covid Booster? You Probably Won’t Need Another for a Long Time
A flurry of new studies suggests that several parts of the immune system can mount a sustained, potent response to any coronavirus variant.
Why Nasal Covid Vaccines May Make Better Boosters
Nasal vaccines under development around the world may make better boosters by stopping the coronavirus in the airways.