Say this holds out, but say it's fast evolving. A woman in Japan for instance recovered from the virus 2 weeks ago, and is in the hospital w/ it for the 2nd tim

Say this holds out, but say it's fast evolving. A woman in Japan for instance recovered from the virus 2 weeks ago, and is in the hospital w/ it for the 2nd time. If you don't die the first time, what's to say you don't get this 3-4 times in the next year and the 4th time gets you?