When the different vaccines came out we did not have peer-reviewed studies to show that they were effective, only the smaller studies done by the drug companies that developed them. In much we were accepting the opinions about the effectiveness as facts, as well as the side effects which were yet to be discovered.
We saw the same thing about the effectiveness of cloth mask and anti-bacterial cleaning had on spreading of covid. It took well past the first year before we started to see when, how, where and whom benefited from different strategies, and the meta studies is yet fully clear on the answers to those.
Looking what we don't know as far as today in terms of vaccinations, the biggest unknown variables seems to be about duration. With most nations having gone through two rounds of vaccinations, it seems now that a third one is now needed. One study cited recently was conducted on patients that is undergoing transplantation, with half of the patients missing antibodies while having taken two vaccination already this year. As a result there is a lot of talking about treating covid vaccination as something that will be added to the existing seasonal flue vaccinations that vulnerable groups take, but which the general population do not because of the short window of protection. Time will tell and it won't be anti-vax people that do the research or conduct the discussion.
We saw the same thing about the effectiveness of cloth mask and anti-bacterial cleaning had on spreading of covid. It took well past the first year before we started to see when, how, where and whom benefited from different strategies, and the meta studies is yet fully clear on the answers to those.
Looking what we don't know as far as today in terms of vaccinations, the biggest unknown variables seems to be about duration. With most nations having gone through two rounds of vaccinations, it seems now that a third one is now needed. One study cited recently was conducted on patients that is undergoing transplantation, with half of the patients missing antibodies while having taken two vaccination already this year. As a result there is a lot of talking about treating covid vaccination as something that will be added to the existing seasonal flue vaccinations that vulnerable groups take, but which the general population do not because of the short window of protection. Time will tell and it won't be anti-vax people that do the research or conduct the discussion.