(AP) -- With swine flu still spreading, the U.N. health agency is warning countries to limit their use of antiviral drugs to only high-risk patients to ensure adequate supplies in case the virus should mutate and become more dangerous.
(AP) -- With swine flu still spreading, the U.N. health agency is warning countries to limit their use of antiviral drugs to only high-risk patients to ensure adequate supplies in case the virus should mutate and become more dangerous.