A litter of puppies born in Namibia in 2020 have been trained to sniff out Covid-19 – News24 August 19, 2022 ©Img. Ksenia_Raykova/Shutterstock.com Nutrition A litter of puppies born in Namibia in 2020 have been trained to sniff out Covid-19 News24 You can read the whole article here.