Coronavirus Briefing Newsletter – Times of India

  • India on Monday reported 2,022 Covid cases and 46 deaths. Cumulative amount is 4,31,38,393 (14,832 active cases) and 5,24,459 deaths
  • All around the world: More than 525 million cases and more than 6.27 million deaths.
  • Vaccination in India: Over 1.92 billion doses. Worldwide: More than 11.4 billion doses.
Two cases of Omicron sub-variant detected in India
Two cases of Omicron sub-variant detected in India
  • INSACOG, the central agency that tracks genomic variants of Covid-19, has confirmed the presence of BA.4 and BA.5 Omicron sub-variants in India – one case in Tamil Nadu and one case another case in Telangana.
  • BA.4 and BA.5 are sub-variants of the highly transmissible Omicron variant of the virus.
  • In a statement on Sunday, the SARS-CoV-2 Genome Consortium of India or INSACOG said a 19-year-old woman from Tamil Nadu was found to be infected with the BA.4 sub-variant of the virus.
  • The patient presented only mild clinical symptoms and was fully vaccinated. She has no travel history.
  • Earlier, a South African national was reported positive for the BA.4 subvariant of Omicron upon arrival at Hyderabad airport.
  • In another case, an 80-year-old man from Telangana tested positive for the BA.5 subvariant of the virus. The baby has only mild clinical symptoms and has been fully vaccinated. The patient has no travel history.
  • According to INSACOG, INSACOG said contact tracing of BA.4 and BA.5 patients is being done as a precautionary measure.
  • BA.4 and BA.5 are subvariants of Omicron circulating globally. These were first reported from South Africa earlier this year and are now being reported from several other countries.
  • These subvariants were not associated with disease severity or increased hospitalization rates, INSACOG said.
How many doses of vaccine do you really need?
How many doses of vaccine do you really need?
  • One research of the Hyderabad-based Asian Institute of Gastroenterology (AIG), says that those who are partially vaccinated – those who have only had one dose of the Covid-19 vaccine – and then contract and recover from the disease, will have enough protection with just one dose of vaccine. and therefore no need for a second dose of vaccine.
  • The study, the results of which was published in a recent issue of International journal of infectious diseasesexamined the efficacy of the Covid-19 vaccine to induce post-immunization immunological memory and evaluated immunological memory in individuals previously infected with the novel coronavirus following a single dose of mRNA vaccine.
  • The study found that “a higher memory T-cell and B-cell response in addition to a higher antibody response to a single dose of Covishield given three to six months after recovery from Covid-19,” the study found. The study adds that there exists “immunoprotective memory in individuals who have been previously exposed to a single dose of vaccine. “The study says such people can effectively deal with reinfection because their immune systems ‘can enhance the recall response to antigens later when they have developed it’. adaptive immune memory”.
  • The study of 280 health-care workers also found that people with no history of previous infections needed both doses of the vaccine. “Of the 280 study participants, 131 were RT-PCR positive with mild to moderate illness and 50 were hospitalized. All 131 (46.78%) were seropositive and 149 (53.22%) were seronegative before the first vaccination dose. The study said a higher antibody response was noticed in people who were previously infected with a single dose.
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Written by: Sushmita Choudhury, Tejeesh Nippun Singh, Jayanta Kalita, Prabhash K Dutta
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