@ SA January 1, 2020 at 19:38
The Mass. whooping cough cases had all been vaccinated, and as for waning immunity, they were only kids, so couldn’t have had their last injection very long before.
In the case of the African polio, it the article states the cases were caused by the shots, because they were the same strain, not the wild variety.
You should remember a few points – vaccines are a multi-billion dollar industry, and also many powerful people believe the earth is overpopulated, and think it would be desirable to actually cull many, and sterilize many more. I actually have a quote from a recent American President to his Vice President to that effect, but I’m sure it would get deleted.