New variants like Delta, which are more transmissible and have been shown to evade protections in some cases, are moving the bar for herd immunity near impossibly high levels.
Experts say the biggest mistake was allowing the virus to travel freely into the rural areas, adding that eradication of the virus now is too far-fetched an idea.
While Covid-19 has been a catastrophe, it’s also an unprecedented opportunity, given the visible public health ravages, to change minds and prove the value of vaccines.
Covid-19 in Manaus peaked in April-May 2020 and then developed a supposed 76% herd immunity by October, but the Brazilian city is now besieged by a second wave.
Evidence is compelling that a robust and rapid vaccination campaign could render Covid less of a threat than seasonal flu through building herd immunity.
Last August, I estimated that Covid-19 will end its epidemic phase in India by January 2021. It appears that this prediction was not too far off the mark.
Paul Alexander, a senior adviser at the Department of Health and Humans Services, encouraged adoption of a policy to increase the number of infections among young adults.
In tactical terms, the shirtless protest was worse than a self-goal. Suddenly, the fiascos of the AI Summit were forgotten, and the Youth Congress’s disruption became the issue.
IAF is fine with accepting the aircraft with 'must-haves', even if some other steps remain pending, which may take at least another year, it is learnt.
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