Yellow Fever vax mandation, a chequered history

Firstly this is only required or advised in 7 countries, and the kicker is that the case fatality rate is 30-60%, it's bad ass, ~1000 times more lethal and in no way comparable.

And secondly it was also rushed out without adequate testing, read on...

The Yellow Fever Vaccine: A History

In the United States, the vaccine was given to virtually all recruits. Between January 1941 and April 10, 1942, an astounding 7 million doses were distributed, all manufactured by the International Health Division of the Rockefeller Institute, at no charge. A strain in use in Colombia was employed, since more than 600,000 doses had been given there without serious complications, but with serum still used as a stabilizer. Eventually, 26,771 cases of jaundice, occurring 60 to 150 days after vaccination, were reported in U.S. personnel [53], and thousands more almost certainly occurred [54]. General Joseph Stilwell was among them [55]. There was a mortality of about three per 1,000 cases (the outbreak was later shown to be due to hepatitis B). The response of the press was generally quiet, perhaps recognizing the exigencies of war, but the Chicago Tribune reacted with some outrage, noting that 20 times as many soldiers had fallen victim to the vaccine as had been wounded thus far in the war. The paper called for an investigation, claiming inadequate testing and questioning the need for all soldiers to receive the vaccine [56].

https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC2892770/