2. Vaccine side effects show up within the following 2 months, if at all
It is completely normal that, over time, there have been some serious side effects people have had to deal with in the case of some vaccines. However, as in any case, the effects appeared right after the shot or within the following 2 months.
The first oral polio vaccination program in the 1950s is the only one, according to Goepfert, that could be compared to the magnitude and rapidity of the COVID outbreak. When this vaccine first became available in the US in 1955, it took advantage of a weakened form of the polio virus, which might very rarely become activated and cause paralysis in no more than 1 in 2.4 million patients. (Compare this to the 60,000 children in the US who contracted polio in 1952, and the more than 3,000 children who lost their lives to the disease.).
