• India’s well being ministry has confirmed 1,750,723 Covid-19 circumstances (567,730 energetic circumstances) and 37,364 fatalities. 54,735 contemporary circumstances had been recorded on Saturday.
  • Fatalities internationally are 685,102 (over 17.85 million infections).

The numbers are as of Sunday, 12:30 pm IST. Try the newest information right here

The chance of transmission on a practice
The risk of transmission on a train
Courtesy: College of Southampton

  • A examine by scientists from the College of Southampton has examined the probabilities of catching Covid-19 in a practice carriage carrying an contaminated particular person. Based mostly on high-speed routes in China, researchers discovered that for practice passengers sitting inside three rows (widthwise) and 5 columns (lengthwise) of an contaminated particular person (index affected person) between 0-10.3% caught the illness. The typical charge of transmission for these ‘shut contact’ travellers was 0.32%.
  • The examine, in collaboration with the Chinese language Academy of Sciences, China Academy of Electronics and Data Expertise, and Chinese language Centre for Illness Management and Prevention, additionally confirmed that passengers travelling in seats instantly adjoining to an index affected person suffered the very best degree of transmission, with a mean of three.5% contracting the illness. For these sitting on the identical row, the determine was 1.5%.
  • The ‘assault charge’ for every seat — the variety of passengers in a given seat recognized with Covid, divided by the full variety of passengers travelling in the identical seat — elevated by 0.15% for each hour that an individual travelled with an index affected person. For these in adjoining seats, this charge of improve was greater at 1.3% per hour — the very best amongst all seats thought-about. Apparently, the researchers discovered that solely 0.075% of people that used a seat beforehand occupied by an index affected person went on to contract the illness.
  • The researchers conclude that given the assault charges estimated for passengers in the identical row as an index affected person, a secure social distance of greater than 1 m is required for one hour spent travelling collectively. After two hours of contact, they contemplate a distance of lower than 2.5 m could also be inadequate to forestall transmission.

Extra particulars right here.

BCG pictures could decelerate Covid-19 unfold, says examine
BCG shots may slow down Covid-19 spread, says study
  • An American analysis paper says that the anti-tuberculosis vaccine ‘slows down’ Covid-19 unfold inside the group. The paper printed in Science Advances, a peer-reviewed medical journal introduced out by the American Affiliation for the Development of Science, stated that nations with obligatory Bacillus Calmette-Guerin (BCG) vaccination confirmed “slower an infection and demise charges” in the course of the first 30 days of the Covid-19 outbreak of their nation.
  • International locations equivalent to India and China, which have included BCG within the nationwide immunisation programme have had comparatively decrease demise charges. Some sections of docs consider it’s the BCG vaccine that’s defending folks in opposition to Covid-related issues. It’s recognized that the BCG vaccination given to infants inside 15 days of beginning to forestall TB, strengthens immunity in opposition to different infectious ailments too.
  • The US examine analysed the day-by-day charge of improve of confirmed Covid circumstances in 135 nations and deaths in 134 nations within the first 30-day interval of every nation’s outbreak. “Necessary BCG vaccination correlated with a flattening of the curve within the unfold of Covid-19,” the evaluation confirmed.
  • Nonetheless, not all well being specialists are satisfied. “It appears simply conjecture in the intervening time, particularly since each India and Brazil, which have BCG vaccination programmes, have enormous variety of circumstances,” says one. Extra particulars right here
India’s megacities see a dip in Covid-19 copy charge
India’s megacities see a dip in Covid-19 reproduction rate
  • With the variety of energetic circumstances in Delhi down from a peak of 28,000 on June 27 to lower than 11,000 as on Sunday, expectations are that the variety of energetic circumstances within the nationwide capital could fall to lower than 1,000 by subsequent month, if the present charge of an infection holds up. Delhi’s R-naught charge — which measures the speed of copy of the an infection, that’s, what number of wholesome folks does an contaminated particular person transmit the illness to — has been persistently under 1 for nearly your complete month of July. Presently, Delhi’s R-naught charge is 0.66 — which signifies that 100 contaminated folks will infect 66 others. That’s a pointy enchancment from the time when Delhi’s R-naught charge was virtually 2 — that means every contaminated particular person was transmitting the illness to 2 folks.
  • The dipping of the R-naught charge has additionally manifested itself within the enchancment in Delhi’s restoration charge, which, at over 89% is now the very best within the nation. Nonetheless, Delhi isn’t alone — capital cousins Mumbai and Chennai too have joined the under-1 R-naught charge membership. Mumbai’s R-naught charge within the final week of July stood at 0.81 whereas Chennai’s stood at 0.86. Admittedly, it’s nonetheless early days for all these three cities to pop the champagne however with their restoration charges properly above 80%, slightly cautious optimism wouldn’t damage. General, India’s R-naught charge for July stood at 1.16.
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Written by: Rakesh Rai, Judhajit Basu, Sumil Sudhakaran, Tejeesh N.S. Behl
Analysis: Rajesh Sharma