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.

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.

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.