[ad_1]
the virus circulated a Milan as December 2019. Confirmation of a hypothesis, already examined by scientists, comes from a swab oropharyngeal of a boy, harvested in late November, so about 3 months before patient 1a was discovered Codogno. This is demonstrated by a study ofMilan State University, published in the magazine Emerging infectious diseases. The accredited sub-national laboratory who for the surveillance of measles and rubella from the university signs the work and Gian Vincenzo Zuccotti, President of the Steering Committee of the Faculty of Medicine and Surgery, announced the results today. A study by the Higher Institute of Health had already verified, last June, the circulation of the virus in the wastewater of Milan and Turin only in December a year ago.
The swab was performed on a 4-year-old boy, who had already started feeling ill with a cough and rhinitis on November 21. According to the study, on November 30 the minor was transferred to the emergency room with respiratory symptoms and vomiting and on December 1, measles-like patches appeared on the skin. On December 5, therefore, 14 days after the onset of symptoms, an oropharyngeal swab for measles was applied, which was subsequently analyzed. showed the cause was Sars Cov 2 instead. “The idea – explains Silvia Bianchi, one of the researchers – was to investigate retrospectively all cases of rash disease identified in Milan by the measles and rubella surveillance network between September 2019 and February 2020, negative results in laboratory investigations for the confirmation of measles ”. Sars CoV 2 can, in fact, lead to Kawasaki syndrome and skin manifestations common to other viral infections, such as measles. Initial descriptions of these symptoms associated with Covid-19 come from Lombardy dermatologists. The study, coordinated by Elisabetta tanzi, demonstrates the presence of SARS-CoV-2 in the RNA buffer. It is, experts say, a result that revolutionize knowledge about the spatio-temporal spread of the new coronavirus. Scientific evidence already existed, firstly those relating to the discovery of the virus in sewage water Milan in mid-December 2019, which showed that the virus it circulated undisturbed for some time. The fact was also conceivable from the abrupt impact with which the pandemic. The prolonged and unrecognized spread of Sars-CoV-2 in northern Italy could explain, at least in part, thedevastating impact from the first wave of Covid-19, researchers are still watching. A little less than a month ago, the hypothesis emerged that the virus was circulating even before the end of last fall following the unexpected results of a study by the Milan Cancer Institute. An underground circulation that, however, has not completely convinced the scientific community. For now.
It is essential to be very cautious with the news of the child who allegedly contracted Covid-19 in Milan in December 2019. Read the work carefully It turns out that the determined viral sequence is identical to that of many viruses that are circulating. This does not allow to rule out that it is a contamination, easier if a homemade PCR test is used as the one described by colleagues “, writes virologist Roberto Burioni, professor at the Vita-Salute San Raffaele University in Milan –
“The research is very interesting, but to say that the virus was here since last year, we need more robust data.” However, at the end of April the news spread that in France the possible zero patient actually dated back to December 27, while at the end of May some Spanish virologists declared that they had found traces of the new coronavirus in a water sample waste collected in Barcelona even in the march 2019.
The study summary
Stock Photo
[ad_2]
