The impotence pill Viagra may be a useful treatment against Alzheimer’s disease, say US researchers who have been studying its effects in the brain. Tests in cells suggest the drug targets some of the proteins that accumulate in this type of dementia. The Cleveland team also analysed a database of […]
Seven different COVID-19 vaccines increase immunity when used as a booster for people who have had two doses of AstraZeneca/Oxford vaccine, and 6 vaccines provide immunity as boosters after 2 doses of Pfizer/BioNTech, a study has shown. However there were large variations in antibody and cellular immune responses between vaccines. […]
More than 400,000 people in the U.S. have received COVID-19 booster shots at pharmacies since the third dose of the Pfizer-BioNTech vaccine was authorized last week, White House officials announced Tuesday. Most of the shots were given over the weekend, and nearly 1 million people have scheduled appointments to get […]
