text_1: U.S. President Barack Obama waited until millions were infected and thousands were dead before declaring a public health emergency concerning swine flu, the H1N1 virus. 
text_2: The declaration, signed Friday night and announced Saturday, comes with the disease more prevalent than ever in the country and production delays undercutting the government’s initial, optimistic estimates that as many as 120 million doses of the vaccine could be available by mid-October.