Médecins Sans Frontières, also known as Doctors Without Borders, is a charity that provides humanitarian medical care. It is a non-governmental organisation (NGO) of French origin known for its projects in conflict zones and in countries affected by endemic diseases. The organisation provides care for diabetes, drug-resistant infections, HIV/AIDS, hepatitis C, tropical and neglected diseases, tuberculosis, vaccines and COVID-19. In 2019, the charity was active in 70 countries with over 35,000 personnel; mostly local doctors, nurses and other medical professionals, logistical experts, water and sanitation engineers, and administrators. Private donors provide about 90% of the organisation's funding, while corporate donations provide the rest, giving MSF an annual budget of approximately US$1.63 billion.