With current Covid pandemic. I could be wrong but it seems most studies are looking at effectiveness of vaccines and little to nothing on effectiveness of natural immunity. I say this as someone who was one of the first to get vaccinated. Not that I am saying the pharmaceutical companies sponsored the studies. So to answer your question sometimes it is what is not funded that is probably more telling.
It seems even more like there are groups of people who are dead-set on certain catchphrases (like "natural immunity" or it used to be "herd immunity") no matter what facts they are presented with.
A lot of the antivax folks cling to the idea of natural immunity being better somehow, but who in their right mind would choose immunity from getting infected with a virus that can make you very very sick (or dead) and cause you to infect many others around you if they could otherwise get immunity from a free vaccine with none of those problems?
I am in South Africa. We initially struggled to get the vaccine and first phase was literally a clinical trial for health workers. We eventually did get stock but it seems by then a significant number of the population got Covid. Omicron variant doesn't seem to have affected us as much and surveys have shown that up to 80% South Africans have natural immunity from having had Covid. Yes there are some papers on the topic but government policy does not feature anything related to natural immunity. It wasn't a case of get intentionally infected rather it was a case of getting vaccines later than other nations.
It's certainly not good that so many people were forced to roll the dice initially because of lack of access to a vaccine that already exists. As new waves of variants get spread around data has been being collected so we can learn more about the immunity given by both vaccines and prior infection. Your comment mentioned a lack of research being done, but said nothing about government policy. How do you think government policy should have changed in relation to natural immunity?
From what I've seen a prior infection may give stronger protection than vaccines which is great for people who caught the virus and survived without long term health issues, but that's no comfort for the people who didn't. I hope that access to vaccines has improved in South Africa since whatever degree of protection we get from either an infection or a vaccine doesn't last very long. I'll be trying to get my 4th shot in a couple months.
> How do you think government policy should have changed in relation to natural immunity?
This is my own opinion based on my observations in South Africa. Yes it is unfortunate we could not get access to the vaccine at the quantities and time we would have liked to but the lesson is we need to improve our ability to manufacture vaccines. There are some promising initiatives in this regard. I digress though. South Africa keeps an eye on weekly deaths[1] and can then work out excess deaths. The excess deaths during the recent Omicron wave which peaked at the end of December were significantly lower than the deaths during previous waves. Government continues to encourage vaccination but the restrictions to reduce spread Covid are at the lowest we have had. Even during the peak of the Omicron variant over New Years restrictions were being lifted [2]. So without coming out and saying it, it looks to me that SA government acknowledges that natural immunity seems to be helping keep hospitalisations and deaths low. This is because most of the research in SA anyway tends to place less emphasis on natural immunity but focuses on the vaccine. So all communication from government continues to stress need to vaccinate yet restrictions continue to fall. It could be that I have not read enough but government's attitude has been welcomed.
