?||Can recovered Corona patient get reinfected?||
Trust the SARS-CoV-2 virus to be the tormenting trickster with a bagful of nasty surprises. We are just getting used to a wellspring of evidence that regularly challenges and shatters early assumptions. We have seen how this respiratory virus reveals whole-body pathology, spreads by aerosols besides droplets, affects children besides adults, troubles through chronic sequelae even after apparent recovery from an acute infection (long Covid) and continues to give positive viral test results through dead viruses.
The latest surprise to be delivered by this virus is a reported case of reinfection in Hong Kong. A 33-year-old man had a diagnosed Covid-19 infection four-and-half months ago, with symptoms and a positive test, and recovered uneventfully. After his recent return to Hong Kong from foreign travel, he was tested at the airport as part of the surveillance protocol there. The nasal swab tested positive for the Covid-19 virus. The genetic signature of this virus was different from the earlier one, meaning that he had acquired it from a different person than during the initial infection.
This time around the person was asymptomatic and remained so. The consternation that greeted this report was because of the concern that acquired immunity appeared to be short-lived and not protective against reinfection. Does it mean that this virus can cause repeated infection as it recycles through different human beings at different times? Questions were raised about the value of a vaccine if the immunity conferred is so short-lived.
Questions about reinfection were raised even earlier when reports had come in a few months ago from South Korea, China and Europe that some people who had tested positive for the virus in an RT-PCR test, and had clinically recovered, tested positive again in that test a few weeks later. Some of them had tested negative infection in between. Most had antibodies present as evidence of the immune defence. Whether the repeated test positivity was due to reinfection, reactivation or a false-positive test result was debated. After detailed evaluation and scrutiny of case records, South Korean scientists announced that these repeat positive tests were due to dead viruses and should be considered as false positive. Other countries soon concurred.
https://www.financialexpress.com/opinion/covid-19-bowls-a-re-infection-googly/2068554/
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?||Can recovered Corona patient get reinfected?|| Trust the SARS-CoV-2 virus to be the tormenting trickster with a bagful of nasty surprises. We are just getting used to a wellspring of evidence that regularly challenges and shatters early assumptions. We have seen how this respiratory virus reveals whole-body pathology, spreads by aerosols besides droplets, affects children besides adults, troubles through chronic sequelae even after apparent recovery from an acute infection (long Covid) and continues to give positive viral test results through dead viruses. The latest surprise to be delivered by this virus is a reported case of reinfection in Hong Kong. A 33-year-old man had a diagnosed Covid-19 infection four-and-half months ago, with symptoms and a positive test, and recovered uneventfully. After his recent return to Hong Kong from foreign travel, he was tested at the airport as part of the surveillance protocol there. The nasal swab tested positive for the Covid-19 virus. The genetic signature of this virus was different from the earlier one, meaning that he had acquired it from a different person than during the initial infection. This time around the person was asymptomatic and remained so. The consternation that greeted this report was because of the concern that acquired immunity appeared to be short-lived and not protective against reinfection. Does it mean that this virus can cause repeated infection as it recycles through different human beings at different times? Questions were raised about the value of a vaccine if the immunity conferred is so short-lived. Questions about reinfection were raised even earlier when reports had come in a few months ago from South Korea, China and Europe that some people who had tested positive for the virus in an RT-PCR test, and had clinically recovered, tested positive again in that test a few weeks later. Some of them had tested negative infection in between. Most had antibodies present as evidence of the immune defence. Whether the repeated test positivity was due to reinfection, reactivation or a false-positive test result was debated. After detailed evaluation and scrutiny of case records, South Korean scientists announced that these repeat positive tests were due to dead viruses and should be considered as false positive. Other countries soon concurred. https://www.financialexpress.com/opinion/covid-19-bowls-a-re-infection-googly/2068554/