Catholic Church and health care
The famous Mother Teresa of Calcutta established the Missionaries of Charity in the slums of Calcutta in 1948 to work among "the poorest of the poor". Initially founding a school, she then gathered other sisters who "rescued new-born babies abandoned on rubbish heaps; they sought out the sick; they took in lepers, the unemployed, and the mentally ill". Teresa achieved fame in the 1960s and began to establish convents around the world. By the time of her death in 1997, the religious institute she founded had more than 450 centres in over 100 countries.
Discalced Carmelites
With little resources and often bitter opposition, St. Teresa succeeded in 1562 in establishing a small monastery with the austerity of desert solitude within the heart of the city of Ávila, Spain, combining eremitical and community life. On 24 August 1562, the new Convent of St. Joseph was founded. Her rule, which retained a distinctively Marian character, contained exacting prescriptions for a life of continual prayer, safeguarded by strict enclosure and sustained by the asceticism of solitude, manual labor, perpetual abstinence, fasting, and fraternal charity. In addition to this, St. Teresa envisioned an order fully dedicated to poverty.