Fiocruz Micron . Identifies the most permeable subtypes of

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The Osvaldo Cruz Foundation (Fiocruz), through genomic analysis, identified the replacement of the BA.1 lineage of covid-19 by the BA.2 lineage in samples analyzed between May 20 and June 2. Both are subtypes of micron. In addition, Fiocruz identified an increase in detection between the months of May and June of BA.4, BA.5 and BA.2.12.1 strains that have genomic features that lead to greater viral transmissibility. can.

Data are computed weekly on the Technology Platform Network with data from the Global Initiative on Sharing All Influenza Data (Gyside), an international platform for genomic data sharing on influenza virus and Sars-CoV-2 .

The Fiocruz genomic network update reflects the genomic characterization of seven RT-PCR confirmed cases of SARS-CoV-2 and influenza co-infection and 69 cases of re-infection, of which 48 were associated with micron reinfection.

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The BA.1 variant was responsible for the COVID outbreak in the country between December 2021 and January 2022. BA.2 has made a place not only in Brazil but in other countries. The BA.4 and BA.5 strains appear to spread more quickly than the earlier Omicron mutations.

The Fiocruz Genomic Network has already generated a total of 709 reports and sent them to state surveillance and laboratories, comprising 45,657 genomes. This work is carried out by the Laboratory of Respiratory Viruses and Measles of the Institute Osvaldo Cruz (IOC/Fiocruz) in Rio de Janeiro and part of the Fiocruz genomic network in seven other states: Amazonas, Bahia, Ceará. , Minas Gerais, Piau, Paraná and Pernambuco. These eight monitoring centers serve 26 states and the federal district.

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To date, the World Health Organization (WHO) has recognized ten types of priority surveillance, which are classified into four categories: types of concern (VOCs), types of concern (VOIs), versions under surveillance (VUMs). , and different types of anxiety. Under surveillance (VOC-LUM). Only Micron and Delta VOCs are in circulation.

Source: Brazil Agency

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