Health panel rebukes AstraZeneca over "outdated" trial data

New questions are being raised about the effectiveness of the AstraZeneca vaccine as health officials say a U.S. trial of the coronavirus shot may have used outdated information. Meg Oliver has more.

Video Transcript

- Tonight, there are new questions about the effectiveness of AstraZeneca's COVID vaccine. Health officials say data from the company's US trial may have used outdated information. The UK-produced vaccine is not yet approved for use here in the US, but it is in wide distribution around the world. Here's CBS's Meg Oliver.

MEG OLIVER: Tonight, accusing AstraZeneca, federal health officials in an independent oversight board saying AstraZeneca presented outdated and potentially misleading data about the effectiveness of its vaccine after the company announced yesterday that the vaccine was 79% effective against COVID infections. Also expressing frustration today, Dr. Anthony Fauci.

ANTHONY FAUCI: It really is unfortunate that this happened. This is really what you'd call an unforced error, because the fact is this is very likely a very good vaccine.

MEG OLIVER: But there's some good news tonight about Johnson & Johnson's vaccine after worries over supply shortages. The FDA late today cleared the way for a facility to help meet demand. But one other facility is still awaiting word, this as more than half the country has announced plans to make vaccines available to anyone 16 and over by the 1st of May. We're seeing more states expand access to the vaccine. But do we have the supply?

SHEREEF ELNAHAL: All of that depends on the supply actually getting to states and getting to folks that can actually administer the vaccine. We haven't seen that yet.

MEG OLIVER: But time may be running out, as more people travel and new variants continue to fuel a rise in cases. New York reporting its first case of a concerning variant first detected in Brazil that is more contagious. And at least 19 states now seeing a substantial increase in infections, like New Jersey, which has the third highest positivity rate nationwide and where hospitalizations have topped 2,000 for the first time in a month.

SHEREEF ELNAHAL: We got 12 COVID-19 admissions last night. That is a sharp increase from what we've seen over the last several weeks. In fact, it's the highest number of admissions overnight that we've had in almost two months.

MEG OLIVER: Tonight, the uptick in the number of cases is a concern here in the New York metro area. But today, New York Mayor Bill de Blasio announced a bold move, bringing back 80,000 city employees May 3, an effort to send the message New York is trying to return to normal. Margaret?

- Trying-- thank you, Meg.