| After posting above, I saw the linked article. Vulnerable populations may need and get a booster shot but continue to note that what's being said is that the (Pfizer) vaccine starts to become less effective after 6 months, not that it falls off a cliff, and for most, there will be cellular immunity that could last for a long time. Again, the context is that the virus in any form is not going to be eradicated but the focus of all of our attention should be on whether we are likely to get sick. |