This week, the Johnson & Johnson vaccine and its potential hyperlinks to uncommon blood clots dominated the information. In case you missed it, right here’s a fast spherical up of what occurred — and what’s coming subsequent.
The FDA first granted emergency use authorization to the Johnson & Johnson vaccine in late February. Many consultants have been excited concerning the single-dose vaccine as a result of it’s simpler to ship and distribute, and it was seen as a key participant within the world Covid-19 combat.
However originally of this week, six reviews of uncommon blood clots that have been probably linked to the vaccine prompted the FDA and CDC to name for states to halt the distribution of the Johnson & Johnson vaccine. The transfer got here after weeks of controversy surrounding the AstraZeneca vaccine, which has additionally been paused in a number of international locations worldwide as a result of small numbers of an identical clotting concern.
Researchers nonetheless don’t know a lot about how these uncommon instances of blood clots — which have occurred six instances out of greater than 7 million doses administered — could be linked to the vaccine. Within the affected sufferers, researchers have seen a uncommon clotting response much like a uncommon aspect impact of the blood-thinning medicine heparin. Right here’s what else scientists do and don’t know concerning the blood clots.
After the vaccine pause within the U.S., different international locations together with South Africa additionally determined to droop the rollout of the vaccine. Johnson & Johnson stated it could preemptively halt distribution to some European international locations. Within the U.S., polls discovered that religion within the vaccine dropped dramatically after the pause.
On Wednesday, an emergency assembly was held by the CDC’s Advisory Committee on Immunization Practices to determine whether or not the pause of the Johnson & Johnson vaccine rollout ought to proceed. The committee finally determined to abstain from voting, and meet once more in 7 to 10 days as soon as extra info has been gathered.
So, what comes subsequent? The CDC’s committee will reconvene quickly, and hopefully decide concerning the vaccine rollout. In the meantime, the remainder of the world is watching, and a protracted pause may hamper vaccine efforts worldwide.
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