But for all those who tested positive and actually had Covid, they were effective. And who’s to know whether or not berries or anything else can carry Covid?
Sometimes tests don’t work -even pregnancy tests, but that’s no reason for dismissing them all, especially if you’re anti whatever is involved.
The person who gave us our second dose of Covid-milder because we were vaccinated, was an ardent anti-Vaxer and did not test. He declared his illness was flu. Later that year had time off work because he claimed he had . . . Long Covid.