It looks like dealing with new viruses, mutating viruses, and man made viruses will be with us forever. Roche is one of the few companies in a position to deal with these issues. This current version of a combination virus (two parts swine, one part bird, one part human) may be fairly mild, or may come back with a vengence in the fall (perhaps mutated), as did the 1918 flu. The probability of Pandemics in the future is high, so the development of vaccines and antivirals, in a timely way (new manufacturing techniques), is critical. They are our only defense.