WHO raises pandemic alert to phase 4

April 27: The World Health Organization elevated the world's pandemic level to a phase 4 on a scale of 1 to 6. U.S. officials say this would not change nation’s response. NBC’s Chief Science Correspondent Robert Bazell reports.  (Nightly News)The World Health Organization has raised its pandemic alert for swine flu by one level to phase 4, two steps short of declaring a full-blown pandemic.


Some Mexican ill say doctors turned them away

A police officer wearing a surgical mask invites a man to leave at the entrance of the Metropolitan Cathedral in Mexico City on April 26, 2009. Church services in heavily Catholic Mexico City were canceled in an effort to stem the spread of a new strain of swine flu.Two weeks after the first known swine flu death, Mexico still hasn't given medicine to the families of the dead. It hasn't determined where the outbreak began or how it spread.


Scientists developing faster test for swine flu

A newspaper headline of swine flu is seen on a downtown street in Hong Kong on Monday. Researchers in Hong Kong are attempting to create a test that will significantly reduce the time it takes to diagnose the disease.Hong Kong said it has assigned a team of scientists to develop a test that will hopefully cut the time it takes to diagnose the new swine flu strain from a few days to a few hours.


Bazell answers your swine flu questions

April 27: NBC’s Chief Science Correspondent Robert Bazell answers some of the frequently asked viewer questions on swine flu – such as whether or not masks will work, if Tamiflu can be taken preventatively, and whether or not it’s necessary to change travel plans.  (Nightly News)Msnbc.com readers express worries about dangers from the disease outbreak.


Prostate cancer risk slashed with new drug

A drug already sold for other prostate problems significantly cut the chances of prostate cancer being found in men with an increased risk of the disease, doctors reported Monday.