No evidence to suggest coronavirus cluster 5 variant found in minks increases virus transmissibility, disease severity
R. Prasad CHENNAI, November 07, 2020 17:48 IST Updated: November 08, 2020 00:15 IST
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Prof. Francois Balloux, Director of UCL Genetics Institute, U.K. said in a tweet that his colleagues had previously identified mutations in the virus, including one in the Spike protein, occurred repeatedly in minks, which may be involved in increased transmission in carnivore hosts.
Prof. Balloux further said: “SARS-CoV-2 mutations acquired in minks are not concerning.
We already knew that SARS-CoV-2 can transmit from minks to humans. Though, this should be of no concern in terms of the evolution of the transmissibility of the virus.”
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Impact on vaccine efficacy
“We need to wait and see what the implications are but I don’t think we should come to any conclusions about whether this particular mutation is going to impact vaccine efficacy,” says WHO’s Chief Scientist Dr. Soumya Swaminathan. “We don’t have any evidence at the moment that it would.”
Prof. Balloux has been more critical of news reports suggesting that the variant might impact vaccine efficacy.
“The ‘vaccine escape’ scare story is just idiotic. Vaccine-escape mutations may (or not) arise in humans in the future, if they are advantageous to the virus for (once vaccines will be deployed). They definitely won’t be fuelled by mutations having emerged in minks,” he tweeted.