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Biowatch

09/26/21 1:14 PM

#239687 RE: randychub #239683

switching from PFE to Moderna?

When getting a second vaccination, you will probably get the most bang for your buck against the specific protein target(s) contained in the first vaccine if you get a second shot from the same manufacturer.

However, especially as the Delta variant is somewhat different than the specific gene sequence/protein that the initial vaccines targeted, it might be a good idea to switch to a different vaccine for the booster.

This is a guess on my part. I haven’t read any studies about it yet.

In addition, I don’t know the exact difference between the Moderna and Pfizer vaccines.
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xrymd

09/29/21 7:21 AM

#239728 RE: randychub #239683

I received 2 pfizer shots last dec and january at the hospital where I work. In August, I checked my antibody level to the spike protein and they were barely abnormal (I know not a great test for immunity).

So I got revaccinated with two doses of Moderna in late august and mid September at CVS. It is about all I can do to avoid serious Covid infection. We have mandatory masks at the hospital.

Delta will help with herd immunity, killing some of the unvaccinated and making many others immune at least to the delta variant.

Interestingly, near the end of life, some of the unvaccinated are remorseful and wish they had gotten vaccinated while others still firmly deny the existence of Covid.

Again belief always trumps logic