COVID-19 vaccine timeline: A look at what’s ahead for leading candidates

Pfizer and the makers of the other leading U.S. COVID-19 vaccine candidates have been cautioning for weeks that the earliest they could seek regulatory approval for wider use of their shots would be late November.

Pfizer says early data signals COVID-19 vaccine is 90% effective

Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, indicating the company is on track later this month to file an emergency use application with U.S. regulators.

COVID-19 vaccine: Who will get the first doses?

Scientists vary in their recommendations over who should get the first doses of the COVID-19 vaccine.

AstraZeneca plans to deliver vaccine trial data by year's end

AstraZeneca hopes to show its COVID-19 vaccine is effective by the end of this year and is ramping up manufacturing so it can supply hundreds of millions of doses in January, Chief Executive Pascal Soriot said Thursday.

Fauci estimates COVID-19 vaccine won’t be available until January 2021 or later

The nation’s top infectious disease expert doesn’t anticipate a COVID-19 vaccine to be available in the U.S. until at least January 2021, if not later, due to several regulatory hurdles still ahead.

Volunteer in AstraZeneca coronavirus clinical trial dies, report says

The volunteer was a man in his 20s, according to reports. It was not immediately clear if the man received the vaccine or had been part of a placebo group.

Pfizer to start testing COVID-19 vaccine in kids

Last week, Pfizer Inc. received permission to test its vaccine in U.S. kids as young as 12, one of only a handful of attempts around the world to start exploring if any experimental shots being pushed for adults also can protect children.

FDA publishes COVID-19 vaccine guidelines opposed by White House

The FDA released updated safety standards for COVID-19 vaccines on Tuesday after the White House blocked their formal release.

Moderna COVID-19 vaccine generates immune response in older adults, study finds

A study, published Tuesday in the New England Journal of Medicine, found that the experimental vaccine was well-tolerated and generated a strong immune response on older adults.

FDA chief says 'science will guide' decision on coronavirus vaccine approval

President Donald Trump is pushing for a fast decision. But Wednesday, the Food and Drug Administration's chief pledged to a Senate committee that the decision will be based on science, not politics.

Johnson & Johnson begins late-stage study of first single-shot coronavirus vaccine

A handful of other vaccines in the U.S. — including shots made by Moderna Inc. and Pfizer Inc. — and others in other countries are already in final-stage testing.

Medical experts concerned US not ready for COVID-19 vaccine

Health departments that have been underfunded for decades say they currently lack the staff, money and tools to educate people about vaccines and then to distribute, administer and track doses to some 330 million people.

UK scientists test nasal spray COVID-19 vaccine

British scientists are beginning a small study comparing how two experimental coronavirus vaccines might work when they are inhaled by people instead of being injected.

Trump disputes CDC director’s COVID-19 vaccine timeline

Trump raised new questions later Wednesday, however, when he publicly contradicted Redfield on the vaccine timeline. In a White House press conference, Trump said that the CDC director had misspoken and that the U.S. could start distributing a vaccine starting in mid-October.

Officials detail plan to provide COVID-19 vaccines for free

The federal government is outlining a sweeping plan to make COVID-19 vaccines available for free to all Americans.

COVID-19 clinical trials seeking diverse enrollment

Vaccine trials for COVID-19 are underway across the country, but national agencies are calling for more people to sign up -- specifically minorities.

NIH: AstraZeneca's pause on COVID-19 vaccine study shows there will be 'no compromises' on safety

The National Institutes of Health director is telling Congress that AstraZeneca's suspension of its COVID-19 vaccine study shows there will be “no compromises” on safety in developing the shots. AstraZeneca has put on hold its late-stage studies in the U.S.