 In 2016, Chigwedere was Zimbabwe's candidate for the position of the African Union Commissioner for Social Affairs 2017 to 2020.Chigwedere earned a doctorate in immunology and infectious diseases with a second major in ethics of public health practice and an interdisciplinary certificate in the epidemiology of infectious diseases at the Harvard School of Public Health where he was one of three finalists for the Albert Schweitzer Award, the school's highest honor to graduating students.He conducted post-doctoral work at the Harvard AIDS Initiative supervised by renowned retrovirologist Max Essex who is especially known for being first to provide the serological evidence that AIDS is caused by a retrovirus in 1983.