The number of confirmed and probable human A/H1N1 cases has risen to 4298 in 47 U.S. states, with three deaths, the U.S. Centers for Disease Control and Prevention (CDC) reported Thursday.

According to the CDC, the state with the most confirmed and probable cases is Illinois which has 620 cases, followed by Wisconsin with 510 cases, California with 473, Texas with 439 and New York with 431.

The number of confirmed cases on Wednesday was 3,352 in 45 states.

The increase showed that the ongoing outbreak of the A/H1N1 influenza continues to expand in the United States. CDC officials have said they expect the A/H1N1 flu to spread to all 50 states, to cause severe disease and some deaths.

(Xinhua News Agency May 15, 2009)