It's scary enough without reinfection. Seems unlikely. > the 30,000-letter genetic code of the virus changes by one letter every 15 days [from link] But could

It's scary enough without reinfection. Seems unlikely. > the 30,000-letter genetic code of the virus changes by one letter every 15 days [from link] But could be like the common cold and flu, with new strains each year - but more contagious and deadly. Even then, we could still have new vaccines each year, and better treatment methods.