Health
COVID spread to Europe a few months before China reports, claiming research
Italian scientists believe that COVID-19 may have been epidemic in the country since September last year, and the virus spread across China months earlier than previously thought. Suggests.
According to the World Health Organization, an outbreak of the disease, now known as COVID-19, was first reported in Wuhan, central China, in December. The first case of COVID in Italy was detected on February 21 in a town near Milan in northern Lombardy.
However, a study by researchers at the National Cancer Institute in Milan found that blood samples from September last year contained the COVID-19 antibody. The findings “may reshape the history of the pandemic,” the researchers said.
In the study, published in the scientific journal Tumori Journal, nearly 1,000 people (all) who volunteered for cancer testing between September 2019 and March 2020 in Milan, the epicenter of Italy’s first wave. An asymptomatic) blood sample was examined.
It was found that more than 11% developed a new COVID (SARS-CoV-2) -specific coronavirus antibody well before February, including 14% from blood samples taken last September. .. Scientists have found that about 30% of the antibodies detected are from the second week of February, when the virus began catching Lombardy.
“This study shows an unexpectedly very fast cycle of SARS-CoV-2 among asymptomatic individuals in Italy months before the first patient is identified,” the study authors said. writing. “Finding SARS-CoV-2 antibody in asymptomatic people before the outbreak of COVID-19 in Italy may reshape the history of pandemics.”
This is not the first time scientists have found evidence of the existence of COVID much earlier than previously thought. An Italian researcher in March said more cases of severe pneumonia and influenza were recorded in Lombardy in the fourth quarter of 2019, suggesting that the virus may have been prevalent at that time. I am.
In May, a French hospital said it treated someone with Covid-19 about a month before the first case was officially reported in Europe. Dr. Yves Cohen, resuscitation director at Avicenne and Jean Verdier hospitals on the outskirts of Paris, said scientists retested old samples from 24 patients treated for pneumonia in December and January and tested for influenza. He said he was negative. One patient from a sample taken on December 27 returned positive for COVID-19, he said. BFM TV..
The first confirmed case of coronavirus in the United Kingdom was on January 29, when two Chinese became ill at a hotel in York, northeastern England. A 75-year-old woman from Nottinghamshire is believed to be the earliest known person to become infected with COVID-19 in the United Kingdom after a positive test on February 21.
According to the US Centers for Disease Control and Prevention, the first non-travel-related COVID-19 cases were confirmed in the United States on February 26 and 28, 2020, and regional infections had occurred in the United States by the end of February. Was suggested.
Andrew Brower, an assistant research scientist at the University of Michigan’s Department of Epidemiology, told Newsweek earlier this year: “It is very plausible, and perhaps so, that the coronavirus began to spread long before the first case was reported.”
by Johns Hopkins University, More than 54 million people worldwide have been diagnosed with COVID-19, more than 1.3 million have died, and more than 35 million have survived.
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