With Blacks, its low Vit D and being fat with mortality rates. They don't trust vaccines. Its alright to admit that in general. Things have been improving on that side, but it is slow.
With the differing hispanic tribes, its crowding and low VIt D. Matter of fact, Vit D is a problem for everybody in today's sheltered lifestyle. Many hispanics don't like the "look" of getting vaccinated, it isn't a machismo look. Vaccination rates are really lagging with them, really lagging.
People lie. 41% of Republicans in a survey said they wouldn't take the vaccine, but rates and where the rates are high suggest that was a total lie. See Trump, Donald for truth.
about 15% of Democrats said they won't get it, but unlike the Republicans, they really mean it. They are at the heart of anti-vaxxers in general. Secular, new age quacks that live in a fairy tale, watching the Freedom School scene in Billy Jack one too many times. These guys are never getting vaccinated. Like never. Don't worry about them.