New research suggests the subvariant, which rapidly became the dominant strain in Denmark, is 33% more likely to infect others compared to the original omicron variant.
A new therapy helps prevent peanut allergy, a potentially life-threatening condition afflicting about 1 million U.S. children, according to a study published by the Lancet.
Austria is the first country in Europe to mandate Covid-19 vaccines for virtually all adults, with unvaccinated residents facing potential fines of more than $650 this spring.