Scientists have suggested the origin of repeated cases of COVID-19

US, WASHINGTON (ORDO NEWS) — Scientists believe that re-infection of the patient with a coronavirus infection can provoke particles of the virus that remain deep in the lungs even after recovery. This is the conclusion reached by researchers from the Chongqing Army Medical University in China.

According to the South China Morning Post on Thursday, April 30 , specialists examined the case of a patient who underwent treatment for coronavirus infection and passed three negative tests for infection. However, the next day, a 78-year-old woman who was preparing to be discharged after a positive CT scan suddenly died of a heart attack.

An autopsy of the deceased made it clear to scientists that in the deep tissues of the lungs, even after visual recovery, traces of coronavirus particles remain. However, experts did not find their presence in the tissues of the liver, heart, intestines and bone marrow. Researchers note that the strains found in the lungs of the deceased did not cause any obvious symptoms of the disease.

To more accurately detect hidden traces of coronavirus, researchers suggested flushing patients’ lungs before discharge.

The Daily Mail, citing data from the World Health Organization (WHO) on April 25, reported that it is not known for certain whether people who have had COVID-19 are immune to reinfection .

An outbreak of SARS-CoV-2 virus COVID-19 occurred in Wuhan late last December. Outside of China, the disease was diagnosed in patients in more than 210 countries. On March 11, the World Health Organization (WHO) announced the coronavirus pandemic.

According to the Worldometer International Bureau of Statistics, on April 30, more than 3.2 million cases of coronavirus infection were confirmed in the world, more than 230 thousand people died, 1,028,563 recovered.

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