More on the Pfizer vaccine

 Both the Pfizer and Moderna vaccines are mRNA vaccines that target the SARS-CoV-2 spike protein. My guess is that if the Pfizer vaccine is protective, so is the Moderna vaccine. While I I have a high titer of spike antibody, I don't know how protective that will be now or in the long run. Needless to say, it is too soon to predict how durable any protection from these vaccines will be.

As for the effectiveness claims:
" . . . key information about the vaccine is not yet available. There is no information yet on whether the vaccine prevents severe cases, the type that can cause hospitalization and death.
Nor is there any information yet on whether it prevents people from carrying the virus that causes Covid-19, SARS-CoV-2, without symptoms.
Without more information, it’s too early to start predicting how much of an impact the vaccine could make, said Michael Osterholm, director of the University of Minnesota’s Center for Infectious Diseases Research and Policy.
“I don’t want to dampen any enthusiasm for this vaccine. I just want us to be realistic,” Osterholm said. “For a vaccine to really have maximal impact, it’s going to have to also reduce severe illness and death. And we just don’t know yet.” https://www.statnews.com/2020/11/09/covid-19-vaccine-from-pfizer-and-biontech-is-strongly-effective-early-data-from-large-trial-indicate/?fbclid=IwAR3G52Bcyjntl2FsBnRicBYoSpUWosPKMMndWdD8piQIB5YiSEsvc7yBDJQ

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