Cases of the swine-flu virus have now been found in all 50 U.S. states, and tests have confirmed the H1N1 virus in more than 10,000 people across the country, U.S. officials said Monday. The U.S. Centers for Disease Control and Prevention (CDC) said the confirmed tests represent about one in 20 o the actual number of infections, which would bring the total number of U.S. cases to about 200,000. According to the CDC, 17 U.S. deaths have been directly linked to the influenza. While the H1N1 virus appears mild, it affects mostly older children and young adults, and experts worry it could mutate into a more dangerous form. The virus, which spreads easily and usually causes mild illness, has been diagnosed in nearly 18,000 people in 64 countries, killing 115, according to the World Health Organization (WHO). It was found for the first time this week in Bulgaria, Vietnam, and Jamaica.
