Mary Prema Pierick Europe. She returned to India to supervise the tertianship program of the institute, the last stage of training before final religious profession. She succeeded Sister Nirmala Joshi as Superior General on 24 March 2009, heading an institute which had over 5,000 members worldwide at that time. Mary Prema Pierick Sister Mary Prema Pierick, M.C. (born 13 May 1953), is the current Superior General of the Missionaries of Charity of Calcutta, India, the religious institute founded by the Saint Mother Teresa of Calcutta. She was born Mechthild Pierick in a farming community in Reken, Germany. In 1980, after reading the biography
Sellappan Nirmala Medical Research, which told the prime minister Rajiv Gandhi and Tamil Nadu health minister H. V. Hande. HIV subsequently became an epidemic in the country. Nirmala submitted her dissertation, "Surveillance for Aids in Tamil Nadu", in March 1987 and later joined the King Institute of Preventive Medicine and Research in Chennai. She retired in 2010. Sellappan Nirmala Nirmala Sellappan (born 1952 or 1953) is an Indian doctor who discovered the first case of HIV in India in 1986. In 1985, aged 32, she was working as a microbiology student in Chennai (Madras) and for her dissertation, began collecting blood samples