What the latest COVID research says about breakthrough cases and transmission : Shots

Gloria Clemons gives a COVID-19 vaccine to Navy veteran Perry Johnson at the Edward Hines, Jr. VA Hospital in Hines, Ill., in September.

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Gloria Clemons gives a COVID-19 vaccine to Navy veteran Perry Johnson at the Edward Hines, Jr. VA Hospital in Hines, Ill., in September.

Scott Olson/Getty Images

Conventional wisdom says that if you’re vaccinated and you get a breakthrough infection with the coronavirus, you can transmit that infection to someone else and make that person sick.

But new evidence suggests that even though that may happen on occasion, breakthrough infections might not represent the threat to others that scientists originally thought.

Ross Kedl, an immunologist at the University of Colorado School of Medicine, will point out to anyone who cares to listen that basic immunology suggests the virus of a vaccinated person who gets infected will be different from the virus of an infected unvaccinated person.

That’s because vaccinated people have already made antibodies to the coronavirus. Even if those antibodies don’t prevent infection, they still “should be coating that virus with antibody and therefore helping prevent excessive downstream transmission,” Kedl says. And a virus coated with antibodies won’t be as infectious as a virus not coated in antibodies.

Scant evidence for easy transmission of breakthrough infections

In Provincetown, Mass., this summer, a lot of vaccinated people got infected with the coronavirus, leading many to assume that this was an example of vaccinated people with breakthrough infections giving their infection to other vaccinated people.

Kedl isn’t convinced.

“In all these cases where you have these big breakthrough infections, there’s always unvaccinated people in the room,” he says.

In a recent study from Israel of breakthrough infections among health care workers, the researchers report that in “all 37 case patients for whom data were available regarding the source of infection, the suspected source was an unvaccinated person.”

It’s hard to prove that an infected vaccinated person actually was responsible for transmitting their infection to someone else.

“I have seen no one report actually trying to trace whether or not the people who were vaccinated who got infected are downstream — and certainly only could be downstream — of another vaccinated person,” Kedl says.

There’s new laboratory evidence supporting Kedl’s supposition. Initially, most vaccine experts predicted that mRNA vaccines like the ones made by Pfizer and Moderna that are

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The research, published in the journal Circulation: Cardiovascular Quality and Outcomes, recommend that dog ownership is linked to a 21% discount within the danger of demise — over the 12-yr interval studied — for individuals with heart illness.

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The latest news in Healthcare IT – straight to your inbox. In a double-blind study, neither the patients nor the researchers know which sufferers have taken the drug or the placebo until the research is over. Researchers found weightlifting considerably reduced risk of colon most cancers. A brand new research has found that patients present process coronary heart and lung surgery are virtually twice as prone to develop an opioid dependence as patients present process common surgical procedure.…

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