While omicron subvariant BA.5 has revealed itself to be the most contagious and immune-evasive iteration of COVID-19 yet, scientists have known for a long time that many cases of COVID-19, regardless of variant, are completely asymptomatic. As the recent study published in the medical journal JAMA Network Open makes clear, more than half of the people who contracted the omicron …
Record spikes in Europe, the US and elsewhere have coincided with the advent of the Omicron variant of the novel coronavirus. For example, the UK reported its highest single-day Covid-19 caseload this week but the segregation of Delta and Omicron cases is not clearly known. "The recent declines in the proportion of Delta variant reported by some countries may reflect …
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The highly infectious Delta variant of coronavirus, first detected in India in February this year, has now spread to almost 100 countries, the latest World Health Organization data reveals. Considered to be two-and-a-half times more transmissible than the original virus, the Delta variant is responsible for most new infections in India, United States, United Kingdom, Russia, South Africa and numerous …
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India became the latest country to shut all its borders with the United Kingdom after France, Germany, Italy, Belgium, Denmark, Bulgaria, the Irish Republic, Turkey, Canada and several other countries suspended flights as a full lockdown came into force in London and southeast England to contain a mutation to the coronavirus. With most of Britain now in the strictest Tier …
