UK government to test mixing COVID vaccines in new trial

MarsBars/iStockBy ZOE MAGEE, ABC News The U.K. government is announcing a new trial to test mixing different types of COVID-19 vaccines. In a world-first, trial participants will be given one vaccine dose followed by a second booster

AstraZeneca vaccine may slow virus transmission

Sonu Mehta/Hindustan Times via Getty ImagesBy ERIN SCHUMAKER, ABC News (LONDON) — The AstraZeneca vaccine likely slows the transmission of the virus in addition to protecting against severe COVID-19 illness and death, according to a new study.