Your girlfriend is overstating the case. In tissue culture, almost 100% of circulating strains of flu are susceptible to oseltamivir. However, clinical and epi

Your girlfriend is overstating the case. In tissue culture, almost 100% of circulating strains of flu are susceptible to oseltamivir. However, clinical and epi studies have shown, at best, a very modest effect on disease in otherwise healthy adults. It may reduce transmission, but it comes with an increased likelihood of vomiting and diarrhea. It is far more critical for those at risk of complications (the elderly, those with underlying respiratory conditions). Widespread usage of oseltamivir will almost certainly lead to widespread resistance, and there aren't many other options for future, particularly nasty flus. This is the reason for the US stockpile--even though the data wasn't conclusive on its benefits, oseltamivir was the best plan for pandemic flu. http://www.bmj.com/content/358/bmj.j3266 http://www.bmj.com/content/358/bmj.j3266 http://www.bmj.com/content/348/bmj.g2545 http://www.bmj.com/content/348/bmj.g2545 http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(14)62449-1/abstract http://www.thelancet.com/journals/lancet/article/PIIS0140-67...