“The worst case scenario is a new pandemic, starting all over again out of Denmark,” came the words of a grave Kåre Mølbak, director of the Danish health authorities, the State Serum Institute. According to the Institute, COVID-19 infections were registered on 216 mink farms on November 6. Not only had such infections been registered; new variants, five different clusters in all, were also found. Mink variants were also detected in 214 people among 5,102 samples, of whom 200 live in the North Jutland Region.
A noticeable tremor of fear passed through the public health community. It was already known that mink are susceptible to SARS-CoV-2. On April 23 and 25, outbreaks linked with mink farms were reported at farms in the Netherlands holding 12,000 and 7,500 animals respectively. The mink had been infected by a farm worker with COVID-19 and, like humans, proved to be either asymptomatic, or evidently ill with symptoms such as intestinal pneumonia. In time 12 of the 130 Dutch mink farms were struck. What interested researchers was the level of virulence in the transmission of the virus through the population. “Although SARS-CoV-2 is undergoing plenty of mutations as it spreads through mink,” writes Martin Enserik for Science, “its virulence shows no signs of increasing.”
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