Easter effect masks high numbers of infections: RKI discovers new variants of coronavirus in Germany – Wikipedia

According to data from the Robert Koch Institute (RKI), many relatively new sublines and mixed variants of Omicron have so far been found relatively rarely or not at all in Germany.

As of April 18, a total of 25 samples of line BA.5 have been detected, according to RKI’s weekly report Thursday evening. Thus, the proportion in the sample was 0.2 percent in the week before last. Latest values ​​are not yet available.

BA.4 Not yet proven. However, in Germany, the genome is decoded in only a small percentage of positive samples.

The predominant subtype in Germany is BA.2 Currently, in the random sample, the RKI shows the proportion for the week before the last over 95 percent. It was – even better for conversion – followed by BA.1.

BA.4 and BA.5 have only recently become known and have been classified as a Concern by the World Health Organization (WHO) as part of Omicron.

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According to WHO information, the evidence came from South Africa and some European countries. Both sublines have been said to have different characteristics from the other Omikron variants – but details are still open.

Targeted search for characteristic mutations

In addition, RKI reports evidence for many of the mixed (so-called recombinant) variants that have been observed. It can develop when a host cell is infected with different pathogens at the same time.

RKI records the following evidence: one from XD (omicron spike protein, rest delta) one from XE and three from XG. The last two are a mixture of BA.1 and BA.2.

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