Everyone has read this week's NY Times article about Brazil’s P1 variant, yes? Brazil is being quite the case study on why relying on natural immunity is not a good enough solution. The calculations toward herd immunity will have to be based on vaccination rates. The percentage of people with natural immunity might buy some time to get shots in arms against existing variants, but we shouldn’t get too comfortable thinking we can just add a percentage of them to the vaccine group and call it good for future protection.
The first detailed studies of the so-called P.1 variant show how it devastated a Brazilian city. Now scientists want to know what it will do elsewhere.
www.nytimes.com
Evidence via patient records that 25-61% of Manaus’ second wave were re-infections, that antibodies from people originally infected are less reactive to the P1 strain, evidence that the China vaccine Brazil is using (CoronaVac) is less effective against P1 than other types in lab tests.
"Dr. Faria said “an increasing body of evidence” suggests that most cases in the second wave were the result of reinfections."
This is not a panic message, but a stay vigilant because this is not just going to disappear overnight, and what happens in the rest of world still has an impact on what happens here. Get vaccinated, but in the mean time we still need other precautions. We're probably not that far off from the UK variant vs Brazilian variant biological WWE death match for dominance, but hopefully we can get the vaccines done so it's playing out in surveillance of a few thousand cases and not tens of thousands of cases.