When could a COVID-19 vaccine be ready?

When could a COVID-19 vaccine be ready?

When could a COVID-19 vaccine be ready?

Top health officials say the end of this year would be a best case scenario. But scientists have never created a vaccine so quickly, and there’s no guarantee any under development will ultimately work.

Worldwide, testing recently started or is about to start for about a dozen potential vaccines. The most promising vaccine candidates are expected to move into larger tests this summer.

How quickly those studies can determine whether the vaccines are safe and effective depends in part on how widely the coronavirus is still spreading. The studies will need to enrol 20,000 people or more for each vaccine candidate, with half of them getting the real vaccine and the rest getting a dummy shot. Then it’s a matter of waiting to see how many in each group become infected with the virus.

Answers will come faster if volunteers are recruited in places where outbreaks are worsening, a trend that can be hard to predict.

One way to speed up distribution is to start manufacturing doses before test results are in. But it’s a gamble that could mean throwing away tons of vaccines that fail.

___

The AP is answering your questions about the coronavirus in this series. Submit them at: FactCheck@AP.org.

The Associated Press

Coronavirus

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Eckville GTI fuels playground demolition

The GTI Petroleum donated the equivalent of $50,000 worth of work towards the new playground

Sylvan Lake RCMP overwhelmed by Saturday’s crowded waterfront

“The sheer number of people at the beach is an indication that enforcement is not the solution.”

230 new COVID-19 cases reported over the weekend

City of Red Deer has nine active cases

Crowds in Sylvan Lake “commonplace” during summer months

The Town of Sylvan Lake looking for solutions from Province for large crowds not social distancing

QUIZ: Are you ready for a summer road trip?

How much do you really know about roads, motor vehicles and car culture? Take this quiz to find out.

Canadian professional chuckwagon racer reflects on cancelled season

This year would have marked Troy Dorchester’s 28th year of racing.

Look out, Mars: Here we come with a fleet of spacecraft

Three countries sending unmanned spacecraft

Most Read