I always like to use scarlet fever as a control. When I was a kid (in the 60s) many children got scarlet fever. I had it as a baby and was hospitalized. It is a strep and has no vaccine. How many here know anyone who has had scarlet fever in the last 50 years? How many of you 45 or younger have even heard of it?

Heres what wiki says about it:

In the early 20th century, scarlet fever was a leading cause of death in children, but even before World War II and the introduction of antibiotics, its severity was already declining. This decline is suggested to be due to better living conditions, the introduction of better control measures, or a decline in the virulence of the bacteria.[8][9]

In the first half of the twentieth century its was a leading cause of death among children. But there is no vaccine. So what changed for it to go from a leading caused of death among children to a disease almost unheard of? The key sentence in the above paragraph is that before antibiotics were even in use the decline was apparent.

It wasnt vaccines like the death cult would have you believe led to the reduction in Whooping cough, measles, polio and rubella. And it wasnt antibiotics. But without a vaccine or antibiotics it followed the same trajectory of decline.

The difference in the prevalence of all these diseases from then to now is clean water and proper waste management. Not a vaccine.