Coronavirus Information Bulletin – Times of India



  • India Sunday reported 12,899 Covid cases and 15 deaths. The cumulative number of cases is 4,32,96,692 (72,474 active cases) and 5,24,855 deaths
  • Worldwide: Over 538 million cases and over 6.31 million deaths.
  • Vaccination in India: Over 1.96 billion doses. Worldwide: Over 11.6 billion doses.
How turning your head offers some degree of safety against Covid-19
How turning your head offers some degree of safety against Covid-19
  • A study published in the journal To flowconducted jointly by researchers from the Department of Aerospace Engineering, Indian Institute of Science (IISc), together with the Nordic Institute of Theoretical Physics (NORDITA) in Stockholm and the International Center for Theoretical Science (ICTS) in Bengaluru, indicates that turning the 9 degree head during short conversations reduces the risk of Covid infection.
  • According to research findings, when a person sneezes or coughs, they can potentially transmit droplets carrying viruses like SARS-CoV-2 to others nearby. He further added that if one simply turns their heads about nine degrees away from each other, which still allows people to maintain eye contact, it can significantly reduce the risk of contracting Covid-19. for speakers.
  • In order to reach their conclusion, the research team engaged in computer simulations to determine the flow of vocal aerosols by generating scenarios in which two people without face masks engage in conversation while standing in pairs, four or six feet apart. After that, he calculated the rate and extent of the spread of vocal aerosols from one to the other.
  • According to the simulations, the risk of being infected was higher when a person acted as a passive listener and did not engage in two-way conversation. Factors such as the height difference between people talking and the amount of aerosols released from their mouths also impact viral transmission.
  • Initially, while Covid-19 was still spreading in 2020, the general consensus within the scientific community was that the virus causing the disease – SARS-Cov-2 – was largely spread by coughing. or sneezing. However, it quickly became apparent that asymptomatic transmission also leads to the spread of Covid-19. However, very few studies have examined aerosol transmission via speech as a means of asymptomatic transmission.
  • In addition, the analysis also looked at the possibility of virus entry through the eyes and mouth to determine the risk of infection compared to a majority of previous studies that only considered the nose as the entry point for the virus. virus. The simulations, which also looked at pitch differences between speakers, found that “a small pitch difference turns out to be more dangerous than both speakers being of equal height” because there is “reduced interference between speech rolls” only when two faces are at the same level.
Subvariants of Omicron behind Covid spike?
Subvariants of Omicron behind Covid spike?
  • India’s Covid Genome Sequencing Facility found that Omicron sublines, primarily BA.2, BA.2.38 and in some parts of the country BA.4 and BA.5, caused an increase in cases of Covid-19. But no new variant has been detected so far.
  • On Friday, the Indian SARS-CoV-2 Genomics Consortium or INSACOG reviewed the surveillance data. She found BA.2 in 60% of cases and BA.2.38 in 33%.
  • But the percentage of BA.4 and BA.5 is still much lower, ANI quoted officials as saying.
  • Most of the cases found in the current phase are from BA.2 and BA.2.38. BA.2 and BA.2.38 run “neck to neck”, indicating higher transmissibility and currently dominating in most locations.
  • The majority of cases are mild infections which include colds, coughs, fevers and body aches.
  • Meanwhile, states and union territories have been asked to submit “more” samples for whole genome sequencing from districts and areas that have seen an increase in Covid cases. More details here
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Written by: Sushmita Choudhury, Jayanta Kalita, Prabhash K Dutta, Tejeesh Nippun Singh
To research: Rajesh Sharma


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