Looks like H5N1 has already morphed enough to be resistant to Tamiflu , which is a brand name for oseltamivir. A 14 year old girl in Vietnam has been found to have the resistant variant. However, another anti-viral, zanamivir, sold by GlaxoSmithKline under the brand name Relenza is still effective. If you're really concerned about stockpiling anti avian flu drugs, then you should stock both.

The full article can be read at the following link. It will probably only be available for a couple of days.

http://www.ctv.ca/servlet/ArticleNews/st...1014?hub=Health