We Never Know
No Slack
The article points out that he is an idiot. At least if he claims to be a health care worker he is one. They should know better than this:
"For me to wear a mask defies the efficacy and purpose of a mask and sends an untruthful message that I am susceptible to infection or could transmit it,”
New variants are appearing all of the time. Two things happen as time goes on. A persons immunity drops. Some faster than others. And age is a factor. And one is less immune against new variants than the version that one had.
AAAS
They could become more common over the next couple of months if early cases begin to lose their immunity. Reinfections with the four coronaviruses that cause the common cold occur after an average of 12 months, a team led by virologist Lia van der Hoek at Amsterdam University Medical Center recently showed. Van der Hoek thinks COVID-19 may follow that pattern: "I think we'd better prepare for a wave of reinfections over the coming months." That's "bad news for those who still believe in herd immunity through natural infections," she adds, and a worrisome sign for vaccines.
"And one is less immune against new variants than the version that one hadv
Not true, at least with the Delta variant. .
Conclusions This study demonstrated that natural immunity confers longer lasting and stronger protection against infection, symptomatic disease and hospitalization caused by the Delta variant of SARS-CoV-2, compared to the BNT162b2 two-dose vaccine-induced immunity. Individuals who were both previously infected with SARS-CoV-2 and given a single dose of the vaccine gained additional protection against the Delta variant.
Comparing SARS-CoV-2 natural immunity to vaccine-induced immunity: reinfections versus breakthrough infections
The newly released data show people who once had a SARS-CoV-2 infection were much less likely than never-infected, vaccinated people to get Delta, develop symptoms from it, or become hospitalized with serious COVID-19.
Having SARS-CoV-2 once confers much greater immunity than a vaccine—but vaccination remains vital