Now I might be wrong about this, but when you contract a disease like a flu virus, doesn't your own immune system start building antibodies to fight it, and keeps building antibodies to help prevent it from doing what this is saying it is doing.
If so, why is this shit coming back to hit people a second time?
Coronavirus infects patient for second time, prompting new worries about how ‘cured’ is defined
https://www.foxnews.com/health/coronavirus-infects-woman-in-japan-for-the-second-time-a-first-in-the-country