The World Health Organization (WHO) issued a step-by-step plan on Tuesday, including the rapid mass use of the antiviral Tamiflu, for containing a bird flu outbreak if the virus starts to spread rapidly among humans. The “rapid response and containment strategy” has a chance of quashing the deadly H5N1 virus only if people in the zone at risk receive massive doses of the drug within three weeks of a confirmed outbreak, it said. Full Story