Rising coronavirus cases in Israel, where most residents are inoculated with the Pfizer/BioNTech vaccine, offer "a preliminary signal" the vaccine may be less effective in preventing mild illness from the Delta variant, a ...
Jul 5, 2021
2
1999
A study released April 22 in The Lancet Respiratory Medicine shows that a booster dose of the Pfizer COVID-19 vaccine provides strong protection, roughly 80% to 90%, in the first few months against hospital admissions and ...
Apr 23, 2022
3
515
For some people, the second dose in a COVID-19 vaccination series is causing a stronger reaction and more side effects than the initial dose. That was also true during the clinical trials.
Feb 17, 2021
0
21
The distribution of the first vaccines for the coronavirus has raised hopes that the end of the pandemic may be in sight, but it has also sparked some concern about side effects.
Dec 12, 2020
0
189
(HealthDay)—U.S. health officials have some reassuring news about the safety of the COVID-19 vaccine in young people: Among millions of U.S. teens who've received Pfizer's shots, serious side effects have been rare.
Aug 2, 2021
0
534
A nationwide U.S. study of more than 893,000 adults provides solid evidence confirming that mRNA booster immunizations extend protection against moderate and severe COVID for four to five months. These findings, published ...
Oct 3, 2022
0
90
In one of the first investigations of the effectiveness of a second mRNA booster against COVID-19 Omicron variants, a study from the U.S. Centers for Disease Control and Prevention (CDC) has found that a second booster shot ...
Jul 16, 2022
0
19
Many people are worried about reports of "breakthrough" COVID-19 infections overseas, from places like Israel and the United States.
Sep 8, 2021
0
147
The coronavirus variant detected in South Africa poses a "significant re-infection risk" and raises concerns over vaccine effectiveness, according to preliminary research Wednesday, as separate studies suggested the British ...
Jan 20, 2021
2
349
If someone gets a headache or feels a bit under the weather after receiving a COVID-19 vaccine, it's become common to hear them say something like "Oh, it just means my immune system is really working hard." On the flip side, ...
Apr 19, 2021
0
9
