General Knowledge

Explainer: How worried should we be about the Omicron variant?

Nov 27 (Reuters) – The new Omicron coronavirus variant – identified first in South Africa, but also detected in Europe and Asia – is raising concern worldwide given the number of mutations, which might help it spread or even evade antibodies from prior infection or vaccination. News of the variant prompted countries to announce new […]

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Why health officials are watching new ‘lambda’ coronavirus variant

The variant carries a number of mutations that could potentially aid its spread. A coronavirus variant known as “lambda” is gaining the attention of health officials as it spreads around the world. The variant, also known as C.37, was first detected in Peru in August 2020, according to the World Health Organization (WHO). On June 14,

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Coronavirus disease (COVID-19): Herd immunity, lockdowns and COVID-19

What is ‘herd immunity’? ‘Herd immunity’, also known as ‘population immunity’, is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection. WHO supports achieving ‘herd immunity’ through vaccination, not by allowing a disease to spread through any segment of the population, as

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