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Can people who have been vaccinated against covid donate plasma to covid patients?

Krishna: They can! If plasma donated by people vaccinated against COVID-19 has a high-level of COVID-19 antibodies it may be used as convalescent plasma.*2

Read these government guidelines …. it says 28 days after taking the vaccine, you can donate because by then you will have enough antibodies

Source: MyGovIndia on Twitter

Even red cross says it is accepting plasma from vaccinated people.

But there is an exception: “if an individual received a non-FDA approved COVID-19 vaccine as part of a clinical trial [and] the vaccine was a live attenuated COVID-19 vaccine [meaning it contains a weakened live virus [ here , here ] or the individual does not know what kind of vaccine it was, they must wait two weeks. *1

And all blood donors must feel healthy when they donate, so people who are experiencing the side effects from the vaccine will have to wait until their symptoms get better to donate.

However, FDA says the reasoning behind their guidance is to “ensure that COVID-19 convalescent plasma collected from donors contains antibodies directly related to their immune responses to SARS-CoV2 infection” rather than antibodies formed following vaccination. An FDA spokesperson told Reuters via email that there is yet no data on whether the plasma of vaccinated patients might be effective for the treatment of hospitalized COVID-19 patients.*1

*1Fact Check-Red Cross is accepting plasma from people vaccinated aga...

I also want to add in the end that recent studies show no substantial benefits for plasma therapy.

1.Indian Study Shows No Survival Benefit of Plasma in COVID-19

A randomized controlled trial on the use of convalescent plasma therapy to treat coronavirus infections—the first in the world to be completed—yields disappointing results, but some doctors are not discouraged.

A. Agarwal et al., “Convalescent plasma in the management of moderate COVID-19 in India: An open-label parallel-arm phase II multicentre randomized controlled trial (PLACID Trial),” medRxiv, doi:10.1101/2020.09.03.20187252, 2020.

Indian Study Shows No Survival Benefit of Plasma in COVID-19
A randomized controlled trial on the use of convalescent plasma therapy to treat coronavirus infections--the first in the world to be completed--yields disappointing results, but some doctors are not discouraged.

2. Some doctors are asking the ICMR to discontinue use of plasma therapy as the therapy might produce mutants in the immuno-compromised people. As indications have arisen of the possibility that its use in some cases could foster the emergence of more virulent strains of Sars-CoV-2. Even if this danger is in the realm of conjecture, or turns out to bear a very low likelihood, it should suffice to stop plasma infusions.

Call off plasma therapy for patients of covid-19
As an open letter from health experts argues, its efficacy is unproven, its burden is heavy, and it might possibly worsen the pandemic. India needs uniformly updated treatment protocols

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