Bad News: The CDC has an article about the shortage of Yellow fever vaccine.
it is a manufacturing problem, and partly due to increased demand.
theyre working on allowing a new version of the vaccine.
There have been recent outbreaks in both Angola/the Congo, and Brazil.
why worry? well, returning workers brought cases to China with them, which luckily did not get into the local population.
And th mosquitos that carry the disease are present in the USA.
The epidemic of 1793 in Philadelphia killed thousands.
of course, if there is another epidemic, it will be blamed on global warming, not the decrease in the practice of draining swamps and pesticide use.