People over 65 are more likely to experience a second bout with the virus, according to a large study of medical records.
Tag: Immune System
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.
People Who Have Had Covid Should Get Single Vaccine Dose, Studies Suggest
New studies show that one shot of a vaccine can greatly amplify antibody levels in those who have recovered from the coronavirus.
Millie Hughes-Fulford, NASA Shuttle Scientist, Dies at 75
As the space agency’s first female payload specialist, she conducted experiments about the impact of weightlessness on astronauts’ immune systems and loss of bone mass.
Childhood Colds Do Not Prevent Coronavirus Infection, Study Finds
New research casts doubt on the idea that prior infections with garden-variety coronaviruses might shield some people, particularly children, amid the pandemic.
How the Coronavirus Turns the Body Against Itself
Some patients struggling with Covid-19 develop antibodies against their own tissues, scientists have found.
Emerging Coronavirus Variants May Pose Challenges to Vaccines
Laboratory studies of mutations circulating in South Africa suggest they may dodge some of the body’s immune responses.
Scientists Debate New Covid-19 Vaccination Tactics as Rollout Falters
Should second doses be delayed? Should most adults receive half-doses? Scientists are pondering ways to get more shots into more arms.