Coronavirus Information Bulletin – Times of India

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THE COUNTDOWN
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  • India Friday reported 3,545 Covid cases and 27 deaths. The cumulative number of cases is 43,094,938 (19,688 active cases) and 524,002 deaths
  • Global: Over 516.17 million cases and over 6.24 million deaths.
  • Vaccination in India: Over 1.89 billion doses. Worldwide: Over 11.32 billion doses.
THE CATCH OF THE DAY
You are 1,000 times more likely to catch Covid from the air than from surfaces
You are 1,000 times more likely to catch Covid from the air than from surfaces
  • If you’ve made disinfectants and surface disinfectants your best friends during the pandemic, but forget to wear your mask properly when you go out, here’s bad news for you.
  • Researchers from the University of Michigan (UM) in the US have found that people are 1,000 times more likely to contract COVID-19 from airborne virus particles they breathe than from surfaces that they touch.
  • This is an important finding as early studies have suggested that asymptomatic, pre-symptomatic and symptomatic carriers can shed viral particles, which can remain viable and infectious for up to 7 days on surfaces but only a few hours on surfaces. aerosol. Thus, the emphasis tended to be on surface-based transmission.
  • The study, published in the Journal of Exposure Science & Environmental Epidemiology, looked at public spaces around the college campus, including classrooms, rehearsal rooms, cafeterias, buses and gymnasiums. They even checked the ventilation and air ducts. In total, between August 2020 and April 2021, the researchers collected 256 air samples and 517 surface samples.
  • The team found that the positivity rates were 1.6% for air samples and 1.4% for surface samples, and the probability of infection was around 1 in 100 exposures to the aerosols of SARS-CoV-2 through inhalation and as high as 1 in 100,000 from contaminated surfaces in simulated scenarios.
  • “In the bus, 15 out of 100,000 passengers without a mask could be infected by inhalation if they travel for 5 to 15 minutes on the bus while the air on the bus is contaminated with SARS-CoV-2”, reads- we in the study.
  • “The low overall positivity rate indicated that the risk of exposure to SARS-CoV-2 in the monitored settings was low,” the study adds. This is also one of the limitations of the study pointed out by the team. As the study was conducted on campus, “extrapolation of results to the general population should be done with caution.”
TELL ME ONE THING
As mask use declines, asthma returns
As mask use declines, asthma returns
  • In the last two years of the pandemic, as mask-wearing and crowd avoidance became the norm, asthma patients benefited, having fewer attacks, even as their comorbidity exposed them to more complications. high in the event of a contraction of Covid-19.
  • With the impact of the Covid-19 reflux, doctors are seeing more and more cases of asthma and with the extreme weather conditions likely to prevail in the days to come, they fear an increase in the number of staff.
  • “Wearing masks has helped asthma patients. We have not seen an increase in the number of patients in the last two years, but we can see some now due to the weather conditions. All kinds of extreme weather conditions are not good for asthma sufferers,” said Head of Department of Tuberculosis and Pulmonary Medicine, Goa Medical College (GMC), Dr Uday Kakodkar.
  • Pulmonologist Dr Haradatta Karande says that over the past two months they have seen a lot of pediatric cases. “During the pandemic we have seen virtually no cases of asthma, but over the past two months many pediatric cases have been reported now that outdoor activities and schools have restarted,” says -he.
  • “Wearing masks and restricting movement have indirectly helped people with asthma. However, now, besides adults, we also have a lot of pediatric cases, which had dropped to zero in the last two years. With the weather being recalcitrant, more cases are also being reported,” says Karande. More details here.
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Written by: Rakesh Rai, Sushmita Choudhury, Tejeesh Nippun Singh
To research: Rajesh Sharma

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