From the newsroom of the Washington Post.

It's Robert Samuels from the Washington Post.

Post is Sarah Kaplan.

Hi, this is Ella Hayes, I'm Rady with the Washington Post.

This is Post Reports.

I'm Lena Muhammad in for Martian Powers.

It's Monday, March 22.

Today, the AstraZeneca vaccines trial in the US

plus Google's faltering efforts to work with historically

black universities.

A fourth vaccine in the United States developed by the University of Oxford

and the pharmaceutical company AstraZeneca reported results from a long-anticipated large trial

with more than 30,000 people and they found that it was very effective at preventing illness overall

from 79% effective and completely effective against severe cases of disease.

Carolyn Johnson is a science reporter for the Post.

This was kind of a very big event for this company and for the world because this vaccine is inexpensive,

easy to transport and having another large randomized trial

kind of clearly showing whether that it does work very well will just help increase its uptake and use everywhere.

The goal right now is really to end the crisis phase of the pandemic when people are sick,

becoming very sick, overwhelming hospitals and potentially dying.

All the vaccines look extremely effective against that outcome

and so there's been a message not to shop around and to get whatever vaccine you can get as soon as you can

...