Health,
1.) You are wrong about HIV. It had been in the USA at least 7 to 10 years and probably closer to 30 years before it was recognized in the early 80s (first probable case was in the 50s and there was what was later definitively recognized as cases by the late 60s early 70s)
2.) My point is that to be effective the quarantine would also have to cover people who had contact with people who may have traveled to West Africa and this is not practical. I elaborated in my posts above.