Next City: Can an Algorithm Help Prevent HIV From Spreading Among Homeless Young People?

Among homeless young people, across country, HIV rates are 10 times that of the general population. Keeping alive can mean sex work, drug use and other risky behavior. One of the more effective ways of combating the spread of HIV is peer-led education programs. But, says Eric Rice, a professor at University of Southern California’s School of Social Work, choosing the right peer to lead can be tricky.