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B.1.617 Covid mutation most prevalent 'double variant' in Karnataka: Experts- The New Indian Express


B.1.617 Covid mutation most prevalent ‘double variant’ in Karnataka: Experts
The E484Q mutation has characteristics of a previously detected variant - the E484K - which was seen in the fast-spreading Brazilian and South African variants, making it highly transmissible.
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People queue up to buy essentials ahead of the lockdown, in Bengaluru on Sunday. (Photo | Ashishkrishna HP/EPS)
Express News Service
BENGALURU: The B.1.617 variant of the Covid-19, known more commonly as the double mutant strain, was first detected in India in October last year. As the name suggests, the strain involves two variants of the virus. ....

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Most deaths due to breathlessness in second Covid wave: Experts


Express News Service
BENGALURU: Of the 592 Covid patients who died on Friday, 440 had symptoms of “breathlessness”. Experts said that this has been one of the major symptoms in the second wave. “We have been witnessing more cases of breathlessness, while in the previous wave, symptoms like dry cough, joint pain and headaches were more,” said Dr Manjunath C N, Director, Jayadeva Institute of Cardiac Sciences, and a member of the Technical Advisory Committee for Covid.
Medical experts working with the State Government said that most patients reporting breathlessness are ending up in ICUs or dying at their residences. “The deterioration can be sudden especially if there’s ‘happy hypoxia’, which is considered a silent symptom. A patient has an extremely low oxygen level, but doesn’t show any obvious external signs such as breathlessness,” said Dr S Sacchidanand, Vice-Chancellor, RGUHS. ....

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INTERVIEW | Double mutant variant may trigger intense second Covid wave: Karnataka task force member


Express News Service
BENGALURU: With an exponential rise in the number of Covid-19 cases in the state, Dr Vishal Rao U S, Head and Neck Oncologist and member of the state Covid Task Force, talks on how bad the second wave will be and the possible reasons for the surge
What is the difference between the first and second wave?
One of the most important differences is that the first wave initially spread slowly due to early stringent government measures coupled with strong citizens’ vigilance.
People mostly did follow stringent measures like using masks, ensuring well-ventilated environments, minimising social activities, leading to lower number of Covid cases.  ....

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Will vaccine achieve herd immunity? Jury is out- The New Indian Express


BENGALURU:
Herd immunity. It’s a term that’s now in news again as the country began its nationwide rollout of Covid-19 vaccine on Saturday.  The goal of vaccinating the entire population, according to the Union Health Ministry, would be to help states reach a level of herd immunity.
What that means is that a majority of the population is immune to an infectious disease, slowing down the rate at which it spreads. But the launch of the vaccination campaign also has reignited a debate on whether herd immunity is possible with only the help of vaccines.  No, said Dr Vishal Rao, Head and Neck Oncologist, who was a pioneer in Karnataka to get permission to perform plasma therapy trials on Covid patients.  ....

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