BOGOTÁ, Colombia (Reuters)  President Álvaro Uribe has contracted the H1N1 swine flu virus, and doctors are treating him while he works at home, the government announced Sunday.

The news came two days after Mr. Uribe, an important American ally, attended a summit meeting with other regional leaders in Argentina. He started getting a fever, headaches and backaches after the meeting, said César Velásquez, a government spokesman. He said the leaders who met with Mr. Uribe had been told of his infection.

Costa Rica’s president, Óscar Arias, was the first known head of government to have caught the swine flu. He recovered this month from a mild case.