
AstraZeneca: US data shows vaccine effective for all ages
LONDON -- AstraZeneca’s COVID-19 vaccine provided strong protection against disease and complete protection against hospitalization and death across all age groups in a late-stage U.S. study, the company announced Monday.AstraZeneca said its experts also identified no safety concerns related to the vaccine, including a rare blood clot that was identified in Europe. Scientists found no increased risk of clots among the more than 20,000 people who got at least one dose of the AstraZeneca shot.Although AstraZeneca's vaccine has been authorized in more than 50 countries, it has not yet been given the green light in the U.S. The U.S. study comprised more than 30,000 volunteers, of whom two-thirds were given the vaccine while the rest got dummy shots.In a statement, AstraZeneca said its COVID-19...