Scientists are asking a lot of questions about Covid-19 booster shots, but they don’t yet have many answers. Here’s what they know so far.
Tag: Immune System
Immunity to the Coronavirus May Persist for Years, Scientists Find
Important immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.
Vaccines Are Effective Against the New York Variant, Studies Find
The research adds to a growing number of findings suggesting the Pfizer and Moderna shots are protective against the variants identified so far.
Vaccines Won’t Protect Millions of Patients With Weakened Immune Systems
Many cannot produce enough infection-fighting cells to fend off the coronavirus. But researchers are testing one therapy that may help: monoclonal antibodies.
Researchers Are Hatching a Low-Cost Covid-19 Vaccine
A new formulation entering clinical trials in Brazil, Mexico, Thailand and Vietnam could change how the world fights the pandemic.
Researchers Are Hatching a Low-Cost Coronavirus Vaccine
A new formulation entering clinical trials in Brazil, Mexico, Thailand and Vietnam could change how the world fights the pandemic.
Coronavirus Reinfections Are Rare, Danish Researchers Report
People over 65 are more likely to experience a second bout with the virus, according to a large study of medical records.
Some Long Covid Patients Feel Better After Getting the Vaccine
It is too soon to tell whether the shots have a broad beneficial effect on patients with continuing issues, but scientists are intrigued and beginning to study the phenomenon.
Johnson & Johnson Will Test its Vaccine in Infants
The company’s coming trials will also involve pregnant women and people whose immune systems are compromised.
Studies Suggest People Who Had Covid-19 Should Get Single Vaccine Dose
New studies show that one shot of a vaccine can greatly amplify antibody levels in those who have recovered from the coronavirus.