New Delhi: The World Health Organization (WHO) has advised all countries to enhance surveillance for Covid-19 at the animal-human interface, where susceptible animal reservoirs are identified.The guidance comes after 214 human cases of covid-19 were identified in Denmark with SARS-CoV-2 variants associated with farmed minks, including 12 cases with a unique variant, reported on 5 November.
The new variant had a combination of mutations, or changes that have not been previously observed, the WHO said.WHO has also advised all countries to increase the sequencing of SARS-CoV-2 viruses where possible and sharing the sequence data internationally.Available evidence suggests that the virus is predominantly transmitted between people through.