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Virus variants in Asia threaten the whole world dw.com 2 hrs ago Alexander Freund
If the coronavirus pandemic continues to spread worldwide, vaccines could become ineffective and strains could escape immunity. The right vaccines need to go to the places where they are needed. © DesignIt/Zoonar/picture alliance Coronavirus variants could make the pandemic harder to combat
According to genome databases, such as nextstrain.org, there are now more than 1,000 known variants of the SARS CoV-2 virus.
Up to now, the variants of concern have been named after the places where they were first discovered. But in a move to avoid stigmatizing particular countries, the World Health Organization has now introduced a new naming system based on the letters of the Greek alphabet. The UK/Kent, South African, Brazilian and Indian variants will now be given the letters Alpha, Beta, Gamma and Delta respectively. But the labels will not replace their more complex scient
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Vaccines appear effective against India COVID variant dw.com 1 hour ago Alexander Freund
The B.1.617 variant raised alarms after it was identified as a double mutant. But the fact that both mutations occur together does not necessarily mean that this variant is also twice as infectious or dangerous. © Amit Dave/REUTERS India has set new records for the number of daily infections in recent days
First identified in India, the B.1.617 coronavirus variant has two significant genetic alterations on a surface protein: E484Q and L452R. The numbers indicate the exact position of the respective genome alteration.
E484Q is similar to E484K, which has already appeared in the British, South African and Brazilian variants. And L452R can be found in the Californian variant CAL.20C. In India, however, these two mutations now appear together for the first time, which is why reports refer to a double mutant.