Wary about future, WHO says Tamiflu should be saved for really sick, like pregnant women. 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. [News Source]

New virus “very unstable”, more changes seen: expert . A leading virologist has described the new H1N1 influenza virus as "very unstable", meaning it could mix and swap genetic material when exposed to other viruses. [News Source]

Why China is acting aggressively on swine flu. Six years ago, the Chinese government drew worldwide opprobrium for keeping SARS a secret while its citizens died or spread the disease abroad. But, nobody could accuse Beijing of a coverup over the recent swine flu outbreak. [News Source]

A green solution to swine flu. The current swine flu outbreak highlights how our food system is making us ill. [News Source]