U.S. declares swine flu public health emergency

U.S. declares swine flu public health emergency

Swine flu is a respiratory disease of pigs caused by type A flu viruses, the CDC’s Web site says. Human cases are uncommon but can occur in people who are around pigs. It also can be spread from person to person.

Health officials are concerned because people appear to have no immunity to the virus, a combination of bird, swine and human influenzas. The virus also presents itself like other swine flus, but none of the U.S. cases appear to involve direct contact with pigs, Eberhart-Phillips said.

History of Pandemics
1918:
The Spanish flu pandemic that started in 1918 was possibly the deadliest outbreak of all time. It was first identified in the U.S., but became known as the Spanish flu because it received more media attention in Spain than in other countries, which were censoring the press during World War I. The 1918 flu was an H1N1 strain — different from the one currently affecting Mexico and the U.S. — and struck mostly healthy young adults. Experts estimate it killed about 40 to 50 million people worldwide.

1957:
The 1957 pandemic was known as the Asian flu. It was sparked by an H2N2 strain and was first identified in China. There were two waves of illness during this pandemic; the first wave mostly hit children while the second mostly affected the elderly. It caused about 2 million deaths globally.

1968:
The most recent pandemic, known as the Hong Kong flu, was the mildest of the three pandemics this century. It was first spotted in Hong Kong in 1968 and it spread globally over the next two years. The people most susceptible to the virus were the elderly. About 1 million people are estimated to have been killed by this pandemic, an H3N2 flu strain.

Secretary Janet Napolitano said the emergency declaration is a warning, not a notice of imminent danger, similar to preparing for a hurricane.

“I wish we could call it a declaration of emergency preparedness,” Napolitano said.

Don’t panic, but get prepared: go to Totally Ready for updates and information on how to prepare.