[7] He was a Fulbright Scholar to KwaZulu-Natal, South Africa, focusing on pediatric antiretroviral scale-up under the research mentorship of Hoosen Coovadia at the PEPFAR funded Sinikithemba HIV/AIDS clinic at McCord Zulu Hospital.

[18][19][20] Reddi and Archbishop Desmond Tutu alongside other HIV advocates rebutted Emanuel's arguments that resulted in the restoration of $366 million for antiretroviral scale-up to Uganda in 2010.

[28][29] To address healthcare worker shortages in resource-limited settings, Reddi proposed using human capital contracts inspired by Nobel Prize in Economic Sciences winner Milton Friedman.

[30][31] Under this model, an investor—such as a donor nation, foundation, or global health initiative—would fund a student’s medical training in exchange for 10 years of service in government or NGO clinics within their home country.

Medical licenses would be tied to this commitment, and a multilateral agreement could curb migration during the service period to address human capital flight or “brain drain.”[32][33] Reddi led a major HIV Test & Treat initiative in Shinyanga, Tanzania, partnering with Gilead Sciences, The Vatican, the Tanzanian government, and NGOs like Doctors with Africa CUAMM and Joep Lange's Amsterdam Institute of Global Health.