Going by the latest information forwarded by the US Centers for Disease Control and Prevention (CDC), the number of cases of swine flu, or H1N1, is on the decline, with the swine flu rates in the country reportedly falling for the fifth week in a row.

The CDC elaborated on its website that swine flu has retreated in seven states during the bygone week, which also saw the lowest number of the flu-related hospitalizations and deaths reported in more than two months.

With increasing number of vaccine doses been made available, the number of states reporting widespread swine flu activity has come down to 25, as against the two-week back high of 48 states reporting pervasive swine flu cases.

Commenting on the increased availability of the swine flu vaccine, CDC director Dr. Thomas R. Frieden said at a recent press conference: “As of today there are 73 million doses of H1N1 vaccine available. That's twice the number that were available a month ago, and it is 10 million more than last week, and we expect at least another 10 million doses in the coming week.”

Noting that thus far the safety of the vaccine is “reassuring,” Frieden added that the top priority for vaccination is being given to children, pregnant women, young adults, health-care workers, people who look after infants, and adults suffering from ailments like asthma and diabetes.