A total of 226 human A/H1N1 flu cases have been confirmed in 30 US states, the US Centers for Disease Control and Prevention (CDC) reported on Sunday.

The only person that has so far died of the H1N1 flu virus is a Mexican toddler who was visiting relatives in Texas, said the CDC.

According to the center, the State of New York has reported 63 confirmed cases of the H1N1, followed by 40 of Texas, 26 of California, 18 of Arizona and 15 of South Carolina.

The number of confirmed cases on Saturday was 160 in 21 states.

As of Friday, at least 430 schools in the United States had temporarily closed, while the CDC suggested more schools "should consider" sending students home if campuses have one or more cases of the new strain of influenza.

In his weekly radio address on Saturday, President Barack Obama told the public that his administration is confronting the epidemic's outbreak, vowing to take all necessary precautions in case the virus turn into "something worse."

The administration also continue its public relation campaign on Sunday by sending Homeland Security Secretary Janet Napolitano, Health and Human Services Secretary Kathleen Sebelius and acting CDC Director Richard E. Besser to all five major TV talk shows.