Health,
1.) Regarding HIV: The infections you mentioned were observed in a very diverse population and had been occurring for decades. Just because AIDS was clinically diagnosed in a certain population does not mean that it was endemic to that population, you are assuming that it was. What is your assumption based on? Also forcing everyone who had used intravenous drugs or touched a body fluid of an intravenous drug user in a decade to submit for testing is very unrealistic.
2.) Regarding Ebola I don’t think that West Africans “should” be able to come here. If it would be possible to keep ebola out of the USA with travel bans I would be very pro them. I don’t think a ban would work to prevent ebola from coming here, would be damaging to the economy and allow it to mutate in more infectious strains. That’s why I’m against it. I elaborated more in my earlier posts