The New York Times reports. Katzenstein spent a large portion of his career assisting people living with HIV and AIDS in Zimbabwe and other nations of sub-Saharan Africa.
Katzenstein's devotion to marginalized populations was first fostered in New Mexico, where during an internship he worked at tackling infectious diseases among the local Native American population.While studying and conducting his medical residency at the University of California, San Diego, Katzenstein established a relationship with the medical microbiology department at the University of Zimbabwe’s medical school.