All leading COVID vaccines so far require two shots, making it even more challenging to contain the pandemic

sinovac p
Credit: Xinhua/Alamy

As the nation gears up to vaccinate tens of millions of Americans against the novel coronavirus, public health officials… are facing novel dilemmas, driven by the urgency of the pandemic, the fact that only a small minority may have immunity from prior exposure and by the vaccine available at each site, with the differing intervals between shots depending on the manufacturer.

They will need to keep track of people who have received one dose in order to send a reminder about the need to return a few weeks later. They worry that the first vaccine may make people feel just sick enough that they won’t want to go through the ordeal again. And they foresee hitches if people get their first dose at, say, Walgreens and go to CVS for their second, or, worse still, if they cross state borders, moving from one health department’s registration system to another.

Related article:  'Dangerous precedent': Former FDA commissioners oppose 'right to try' legislation providing access to experimental treatments
Follow the latest news and policy debates on agricultural biotech and biomedicine? Subscribe to our newsletter.

“Two doses more than doubles the logistical challenges of administering the vaccines,” said Jeffrey Duchin, health officer for public health in Seattle and King County, Wash. “The moving parts have to align.”

A two- or three-dose dose regimen is routine for building immunity against many illnesses, but it is unprecedented in a pandemic when the public health goal is to vaccinate 60 to 70 percent of the population within months.


Read the original post

Outbreak Daily Digest
Biotech Facts & Fallacies
GLP Podcasts
Infographic: Deaths from COVID-19 are far higher than reported estimates

Infographic: Deaths from COVID-19 are far higher than reported estimates

More than 2.8 million people have lost their lives due to the pandemic, according to a Wall Street Journal analysis ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

Optional. Mail on special occasions.
Send this to a friend