Just read a thread on Twitter about a case of reinfection for a patient who had Covid-19.  Here is the gist of the thread from Professor Akiko Iwasaki… (@virusesImmunity)

“A first case of #COVID19 reinfection from HKU, with distinct virus genome sequences in 1st and 2nd infection (142 days apart). Kudos to the scientists for this study. This is no cause for alarm – this is a textbook example of how immunity should work.

1) Second infection was asymptomatic. While immunity was not enough to block reinfection, it protected the person from disease

2) Patient had no detectable antibody at the time of reinfection but developed detectable antibody after reinfection. This is encouraging.

3) Since reinfection can occur, herd immunity by natural infection is unlikely to eliminate #SARSCoV2. The only safe and effective way to achieve herd immunity is through vaccination.

Lastly, while this is a good example of how primary infection can prevent disease from subsequent infection, more studies are needed to understand the range of outcomes from reinfection.”

My take?

This similar to a typical flu virus, but I disagree with the need for vaccination.  These viruses seem to mutate so as to become less deadly, so it can spread more easily.

And, getting a flu shot each year doesn’t prevent you from getting the flu, so why would Covid-19 and its mutations be any different?

I personally believe we need to focus more attention on eliminating issues that make people more vulnerable, and then perhaps gear a vaccination toward the most vulnerable, our elderly

For most people, a more healthy lifestyle will reduce the mortality rate substantially.

JMHO