Study shows mixing AstraZeneca and Pfizer vaccines generates strong immune response against COVID-19
CBSN
Mixing doses of the Pfizer and AstraZeneca vaccines can generate a strong immune response against COVID-19, an Oxford University study has found. The study, conducted by Oxford Vaccine Group's Com-Cov vaccine trial, found that those who are given a dose of AstraZeneca followed by a dose of Pfizer four weeks later generated a better immune response.
Oxford developed the AstraZeneca vaccine, which is used in the U.K. In the U.S., three other COVID-19 vaccines are available: Moderna, Johnson & Johnson and Pfizer-BioNTech. The Oxford study recruited 830 volunteers, 50 years or older, in the U.K. to test four different vaccine combinations.Rodeo star Spencer Wright and his wife are making end-of-life preparations for their 3-year-old son after he was found unconscious in a creek, a close family friend said in updates posted on social media and confirmed to CBS affiliate KUTV. The boy had been playing on his tractor before he ended up in the water and a mile downstream.
The launch of Boeing's star-crossed Starliner spacecraft on its first piloted test flight is slipping to at least June 1 to give engineers more time to assess a small-but-persistent helium leak in the capsule's propulsion system, and its potential impact across all phases of flight, NASA announced Wednesday.
Washington — As former President Donald Trump's "hush money" criminal trial in New York proceeds to closing arguments next week, the legal focus is moving south. His attorneys and longtime aide Walt Nauta appeared before Florida federal Judge Aileen Cannon, where they sparred with prosecutors during two contentious, day-long hearings on Wednesday.