The 1972 Yugoslav smallpox outbreak was the largest outbreak of smallpox in Europe after the Second World War. It was centered in Kosovo, a province of Serbia within Yugoslavia, and the capital city of Belgrade. A Kosovar Albanian Muslim pilgrim had contracted the virus in the Middle East. Upon returning to his home in Kosovo, he started the epidemic in which 175 people were infected, killing 35. The epidemic was efficiently contained by enforced quarantine and mass vaccination. The 1982 film Variola Vera is based on the event.