_________ nation has registered the world’s first COVID-19 vaccine for animals ?

a) US
b) Russia
c) China
d) UK

Russia has registered the world’s first Covid-19 vaccine for animals. The vaccine-Carnivak-Cov- has been developed by Rosselkhoznadzor’s Federal Center for Animal Health. The clinical trials of the vaccine had begun in October 2020 and it involved cats, dogs, minks, foxes, Arctic foxes and other animals.