The House has voted to triple to more than $10 billion a year U.S. humanitarian spending on fighting AIDS, malaria and tuberculosis around the world.

The bill devotes $41 billion out of a total of $50 billion over five years to AIDS prevention and treatment. It brings a new chapter to a program credited with saving more than 1 million lives in Africa alone in the largest U.S. investment ever against a single disease.

The vote was 308-116 to expand significantly a $15 billion program promoted by President Bush and enacted by Congress in 2003.