Quote:
Originally Posted by Brian James
That's debateable. All the studies I have seen quoted to back the claim that it reduces transmission have been about the delta variant which isn't even in circulation anymore. Even those weren't exactly conclusive.
And there were plenty of people saying the vaccine prevented transmission including the head of the CDC.
Here is an article about a recent study showing that Covid vaccines reduce infections from Omicron (conclusively)
If it is true that they said the vaccine prevented transmission of Covid then it was wrong. People make mistakes. But it was early in 2021 when the discussion of "Breakthrough infections" came up showing that it was happening. So I can't even remember people saying that the vaccine would prevent infections.
Also just reading the quote above the head of the CDC was saying that the data "Suggests that vaccinated people do not carry the virus". She wasn't even lying. Their data was wrong.
Historically vaccines have been able to stop some diseases without being 100% effective. The results often depended on the % of the population that had taken the vaccines. In the case of Flu vaccines and Covid (SARS) types of vaccines it is clear that the virus mutates faster than the vaccine can stop it.
I would imagine that the original vaccine would be less effective against the Omicron variant than against Delta or Alpha. But the recent vaccine update is geared to fight against Omicron.