The Haiti Connection: Blood Type O.
Check Blood Type by Ethnicity.
Nearly 60% of Hispanics have Type “O” Blood which can be SOLD/USED by anyone. Priceless!
Type O’s only can get Cholera.
So if you find a cholera outbreak you find 0’s.
From DevilCross:
Blood Types and the Population. O positive is the most common blood type. Different ethnic and racial groups have different frequency of the main blood types in their populations. Approximately 45 percent of Caucasians are type O, but 51 percent of African-Americans and 57 percent of Hispanics are type O.
Sause:
Red Cross is NOT a charity IMHO
https://www.redcrossblood.org/donate-blood/how-to-donate/types-of-blood-donations/blood-types.html