Possibly, they can carry various diseases
Being promiscuous (having a lot of sexual partners) does not create HIV - you have to be infected by one of your partners (or by some other means on transmission). The fact that you are promiscuous (have a lot of sexual partners) does not significantly increase your risk of contracting HIV. The risk would arise if you were not having safer sex with them.
A specialist in dealing with events beyond its control, The American National Red Cross offers disaster relief, shelter, and other humanitarian services through more than 700 chapters nationwide. Although it was chartered by Congress in 1905, the American Red Cross isn't a government agency. The not-for-profit organization relies on the efforts of nearly a million volunteers. Aside from helping victims of about 70,000 US and foreign disasters each year, the American Red Cross teaches CPR, safety, and first aid courses; provides support for US military personnel; and maintains the largest blood and plasma banks nationwide. The group is a member of the International Red Cross and Red Crescent Movement.