coronavirus and spark a second wave of the killer bug, experts have warned.Owners are being urged to keep their pets indoors or on leads as researchers call for animals to get tested.Scientists fear pets can pass the virus on to humans, causing another deadly wave of Covid-19.There have been conflicting reports since the pandemic began about whether pets pose any risk, The Mirror reports.Now researchers from University College London want a mass surveillance programme of all animals that live close to humans.It comes after a In New York Nadia, a four-year-old Malaysian tiger, contracted coronavirus at Bronx Zoo reportedly from a keeper.Professor Joanne Santini wants more research into which animals are susceptible to Covid-19 and increased.