Health
Coronavirus: Studies suggest that mild reinfection may follow severe attacks of COVID-19
A new case study suggests that a serious attack of Toronto-COVID-19 may not be enough to prevent a second illness.
A peer-reviewed study published in the BMJ Case Report in February examined a 43-year-old man with severe COVID-19 in April 2020. He needed ventilation and suffered from multiple complications such as renal failure and gastrointestinal bleeding. He was hospitalized for two months before being transferred to a rehab center.
I had four COVID-19 tests in the three months since I was hospitalized, but all returned to negative until August 2020. I went to the hospital with shortness of breath and tested positive for a new coronavirus. He was in the hospital for a day.
Two weeks later, he returned to the hospital with symptoms of choking and shortness of breath and was hospitalized for a week. The COVID-19 test is back with yet another positive result. He told his doctor that he had little outside contact, only direct contact with his asymptomatic family.
Researchers believe that the patient was re-infected with COVID-19 and viral shedding did not cause false-positive results. Viral shedding is the attachment of virus particles to various receptors in the body and their release into the surrounding environment. With COVID-19, viral shedding takes the form of sneezing, coughing, talking, and even exhaling, starting before the patient shows symptoms and may last for weeks thereafter.
Reinfection is not common, but cases have occurred. That number is believed to be less than 100 reinfections worldwide.
“Long-term positive SARS-CoV-2 RNA testing is not always possible, as new reports show that SARS-CoV-2 reinfection is possible as the COVID-19 pandemic progresses. It does not indicate persistent viral shedding from previous COVIDs. -19 Infection, “the authors said in a press release.
The study suggests that the mild symptoms that patients experience a second time are the result of strengthening immunity from the first seizure a few months ago.
The authors state that more studies are needed to determine how long antibodies from previous infections prevent the recurrence of COVID-19 in patients. They say previous studies have shown that natural antibodies to COVID-19 begin to decline within a month or two after infection and are even faster in patients with mild symptoms.
“The role of the presence or absence of antibodies after the first infection in survivors of the first episode of COVID-19 and its role in reducing the risk of SARS-CoV-2 reinfection are not clearly defined, however. Decline is plausible. Lack of immunity or antibody after the first episode of SARS CoV-2 infection can make it more susceptible to reinfection. “
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