Researchers around the world are looking at blood samples taken in late 2019 to see if there are any early signs of corona virus. In a recent example, researchers look at older blood samples taken from children in Milan. A boy’s blood sample tested positive for the corona virus SARS-CoV-2, which causes COVID – 19, and is similar to the strain found in Wuhan, the researchers said. Growing infectious diseases.
The authors report that the sample was taken in early December 2019, three months before the first official corona virus case in Italy. The class of viral genomes was identified as compatible with other strains of Wuhan and corona virus, although they could not further identify which exact strain it was.
The baby was asymptomatic, which is why they took blood samples from him on suspicion of having measles. The children sampled in this group experienced fever, cough, and skin rash. The study reported that the baby had a cough and swelling in the mucous membrane of the nose and was admitted to the hospital with respiratory symptoms and vomiting. All children in this group tested negative for measles, but only one of these children tested positive for SARS-CoV-2.
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“This discovery is of epidemiological significance because it expands our knowledge of the timing and mapping of SARS-CoV-2 transmission pathways,” the authors write. “The long, unrecognized spread of SARS-CoV-2 in northern Italy helps to explain the catastrophic impact and rapid trend of the first wave of COVID-19 in Lombardy.”
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Other researchers also tested blood samples taken in late 2019 for the corona virus and Its antibodies. Some are watching Sewage samples for monitoring And backwards as a trial. Along with this new study, the findings suggest that the virus may have spread to Italy long before the first case was diagnosed.
However, there should be additional studies to confirm this is the case. The virus found in sewage is usually damaged. Indirect evidence for the presence of corona virus is antibodies. Cross-contamination of samples can occur if not handled carefully, and all tests have the potential to produce false positives.
Benjamin Newman, Professor and President of Biological Sciences at the University of Texas-Texas South China Morning Post, “I will continue to monitor and wait for more proven evidence.”
For up-to-date information about COVID-19, check the websites Centers for Disease Control and Prevention And this World Health Organization. For updated global case numbers, check this page maintained Johns Hopkins University Or Govt Monitoring Project.
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