According to Brian Gilbertson, there is simply no evidence of a cause-effect link between lockdowns and social distancing on the one hand, and the number of Covid-19 deaths in the population on the other (“Groupthink madness rules”, July 19 (https://www.businesslive.co.za/bd/opinion/letters/2020-07-19-letter-groupthink-madness-rules/)). I have no idea what statistics or information the author relied on in making this statement, but it is probably the same as that used by the Trump administration.

The most serious problem the world faces with Covid-19 is its contagious and aggressive nature, and its ability to quickly overwhelm health systems if not timeously contained. Within weeks it can manifest in excess deaths — those in excess of the average expected from all causes — resulting in shortages of medical facilities, supplies and personnel. ..

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