Around the World: United States

Vaccine goal: 160 million

About half the US population should get vaccinated against H1N1 influenza and pregnant women and healthcare workers should be at the front of the line, US health advisers said on Wednesday.

Up to 160 million doses of flu vaccine will be available for the start of a vaccination campaign planned for mid-October. Each person will likely need two flu vaccine doses and officials said it was not clear exactly how much vaccine would be available.