Are some COVID-19 vaccines more effective than others?

Are some COVID-19 vaccines more effective than others?
Spain joined other European nations on Wednesday in limiting the use of the AstraZeneca vaccine to the elderly due to concerns over links to extremely rare blood clotting.
Eliminating racist and anti-LGBTQ policies is essential to improving the health of Black gay, bisexual and other sexual minority men, according to a Rutgers-led research team.
Cancer doctors may soon have a new tool for treating melanoma and other types of cancer, thanks to work being done by researchers at the University of Colorado Cancer Center.
Researchers funded by the National Institutes of Health have developed a test to evaluate the expressive language skills of people with Down syndrome, a condition resulting from an extra copy or piece of chromosome 21. Expressive language is the use of words to convey meaning to others. Language delays are common in people with Down …
Britain said it would give alternative shots to people under 30, while the European regulator said it had found a ‘possible link’ with rare blood clots.
As Tiger Woods walked onto the 18th green at the 2001 Masters, throngs of fans were in hot pursuit to catch a glimpse of the golfer and all cameras were pointed at the then 25-year-old, who was on the precipice of etching his name into golf history.
Jordan’s King has broken his silence about a royal family fallout that rattled the country, calling the episode the “most painful” of his 22-year reign.
Prime Minister Scott Morrison said he would accept 55 suggestions from the country’s human rights commissioner to tackle a problem that has been festering for years in politics.
Adolescents who frequently see billboard or storefront advertisements for recreational cannabis are more likely to use the drug weekly and to have symptoms of a cannabis use disorder, according to a new study in the Journal of Studies on Alcohol and Drugs.