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A study conducted on 44 rats injected with the Pfizer–BioNTech COVID-19 vaccine at doses over 300 times the human dose by body weight and 44 rats injected with placebo found no statistically significant evidence of any adverse effects on the fertility of female rats or on the health of the offspring of rats (the 3% lower pregnancy rate found ...
COVID-19 vaccine clinical research uses clinical research to establish the characteristics of COVID-19 vaccines. These characteristics include efficacy , effectiveness , and safety. As of November 2022 [update] , 40 vaccines are authorized by at least one national regulatory authority for public use: [ 1 ] [ 2 ]
The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, [2] [33] is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech. For its development, BioNTech collaborated with the American company Pfizer to carry out clinical trials , logistics, and manufacturing.
The findings in the new report come from the analysis of nearly 1,300 death certificates of Oregon residents ages 16 to 30 who died from any heart condition or unknown reasons between June 1, 2021 ...
Even though many COVID-19 patients recover within 2–6 weeks of the onset of symptoms, some develop symptoms that come and go for months. The possibility has been raised, but needs to be investigated further, that patients with long COVID-19 may be predisposed to the development of lung cancer.
The Food and Drug Administration on Friday approved Pfizer’s treatment for a rare genetic bleeding disorder, making it the company’s first-ever gene therapy to win clearance in the U.S.
There have been a number of reasons expressed why people might not wish to take COVID-19 vaccines, such as concerns over safety, self-perception of being "low risk", or questioning the Pfizer-BioNTech vaccine in particular. 8% of those reluctant to take it say it is because they oppose vaccinations overall; this amounts to just 2% of the ...
Marty Verel, a 59-year-old kidney transplant recipient in Ohio, should have been near the top of the list to receive a COVID-19 vaccine. Yet like millions of others, he wasn’t having any luck ...