COVID-Omicron: Why compare the XD and XE variants to measles, the world's most infectious disease?

COVID-Omicron: Why compare the XD and XE variants to measles, the world’s most infectious disease?

The crisis The COVID-19 Is it behind us, yes, according to the upload? restrictive measures Pretty much everywhere in the world. Not quite if we go by numbers radioactive contaminationwhose crossing its climax requires confirmation in the coming days.

Another cause for concern: new variables. trade virus Really allows him to mutate and give birth to new versions. but also two Variables to relate. This is especially the case Smiley facealso called deltacrone (hybrid from delta And Omicron), And XEAnd hybrid from Bachelor 1 And Bachelor 2And “10% more contagious than BA.2”According to scientists from the UK Health and Safety Agency (UKHSA).

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Covid-Omicron: After 600 cases detected in UK, XE variant ‘10% more contagious than BA.2’ detected 9,000 km away


Two different species are gradually spreading around the world. Several hundred cases of XE have been identified in Englandat Indiabut also in . format Thailand or even in New Zealand. The XD variableAlso, it was discovered in France Until Australia These last days.

Dr. Adrian Eastermann, former epidemiologist of the World Health Organization confirms In the columns of the Canberra Times that deltacrone he is “1.4 is more contagious than BA.1”original omicron. “This was already the case with BA.2 and it certainly is also the case with the XE variant. Which brings them very close to measles, which is the most infectious disease we know of”.

Omicron BA.2 is about 1.4 times more infectious than BA.1. The basic reproduction number (R0) for BA.1 is about 8.2, which makes the R0 for BA.2 about 12. This makes it very close to measles, the most infectious disease we know about.

—Professor Adrian Easterman March 10, 2022

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