A Mumbai resident who had recovered from Covid a while ago recently approached his doctor with an unusual request. He wanted the doctor to authenticate his identity for his bank. An involuntary shaking of his hand muscles, a post-Covid symptom, had altered his signature to the extent that the bank was not accepting it.
“Some of the people who have recovered from Covid cannot hold the pen the way they could earlier,” says O M Srivastava, co-director, infectious diseases, Sir H N Reliance Foundation Hospital, Mumbai. “I have had requests from many to certify that I have known this person

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