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While millions of people own cats and dogs and wouldn’t dream of getting rid of them, pets pose a health risk to humans that is massively overlooked, according to a new study. Since the Covid-19 pandemic swept the world with devastating impact, it has become evident how much of a risk new viruses can pose to our well-being. However, experts are warning that it is not just the wildlife trade or exotic animals that we should be concerned about, as pets could also be sources of zoonotic diseases (which jump from animals to humans). Back garden pets, house pets, working animals and even rodents and pests could host new viruses that could affect humans, according to a new study. It warns that the urbanisation of our habitats and climate change will have an impact on diseases and their dynamics. The study was shared in Science Translational Medicine and penned by disease ecologist Amandine Gamble along with a group of colleagues, who gave examples of how companion animals (aka pets) and stray animals carried a risk of zoonotic spillover. While the risk is thought to be small, experts warn it is significantly underappreciated, especially given the frequent proximity human beings have to pets and strays. The study said: “These animals can play critical roles in zoonotic spillover by enabling the maintenance of a zoonotic pathogen, facilitating its spatial spread, acting as a bridge between otherwise unconnected species, or providing particular opportunities for its evolution.” While the zoonotic spillover that caused Covid-19 sparked a global pandemic, any instance of infection that jumps from animal to human is known as a zoonotic, regardless of the numbers affected. Pet parrots are a known transmitter of the Chlamydia psittaci bacterium to humans. Elsewhere, bats and horses are also known sources of zoonotic diseases. In terms of common household pets, cats can act as a link to a number of fatal diseases. The experts explained: “Numbers of infections are low, but plague is endemic in 17 western U.S. states, and many of the small mammals on which cats prey carry Y. pestis. “Consequently, outdoor cats and cats with incomplete veterinary care, combined with human interaction, suggest that cat-transmitted plague can be considered an increasing public health risk.” They conclude that “it is critical to implement surveillance programs allowing us to track changes in pathogen dynamics”. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Robert Helenius will step in to fight Anthony Joshua on short notice on Saturday, after “AJ”’s original opponent Dillian Whyte failed a doping test last week. Joshua vs Whyte 2 would have been a rematch eight years in the making, with “AJ” having knocked out his fellow Briton in 2015 to avenge an amateur defeat by Whyte. However, Saturday’s rematch at the O2 Arena in London fell through when Whyte, 35, returned an adverse finding in a drug test. Whyte has maintained his innocence, while it was initially unclear whether Joshua, 33, would still compete on Saturday. But his promoter Eddie Hearn then teased an announcement on Tuesday (8 August), with fans learning that Helenius will replace Whyte. The Finn, 39, fought just last week, stopping Mika Mielonen in the third round to bounce back from a knockout loss to Deontay Wilder last October. Helenius appeared to retire after his first-round defeat by Wilder, who tearfully said at the post-fight press conference: “How much is that man gonna suffer? He may be alright right now – a little bit – but what about the next day? What about two weeks from now? What about a month from now? Maybe years from now?” Helenius returned to the ring last Saturday, though, beating Mielonen in what might have proved a helpful warm-up for this clash with Joshua. With that win, Helenius improved his professional record to 32-4 (21 KO wins, 3 KO losses). His most notable opponents, alongside Wilder, have been Whyte and Derek Chisora, with the former outpointing Helenius and the latter losing to the Finn via decision. Following the drastic change to Saturday’s main event, Matchroom is offering refunds to fans who do not wish to attend Joshua vs Helenius. Those who do wish to attend the event will see their original tickets honoured. “This wasn’t in the script,” Joshua said. “I respect Helenius and may I say, I respect any male or female who steps into the ring. “I am laser-focused on the win. I can make steps forward to bigger and better things, but the road map has a checkpoint, Saturday night. May the best man win.” Helenius added: “I am excited. I am a true Viking that is willing to face any challenge at a moment’s notice. This is not an opportunity I was going to let slip away. I plan to make the most of it!” Joshua last fought in April, beating Jermaine Franklin on points to bounce back from two straight decision losses to Oleksandr Usyk. Click here to subscribe to The Independent’s Sport YouTube channel for all the latest sports videos. Read More Anthony Joshua to face Robert Helenius after Dillian Whyte fight cancelled Anthony Joshua news LIVE: Robert Helenius named as new opponent after Dillian Whyte fails doping test Dillian Whyte vows to prove his innocence after doping test ‘adverse finding’ Anthony Joshua news LIVE: Next fight revealed after Dillian Whyte fails doping test Anthony Joshua’s new opponent revealed after Dillian Whyte fight cancelled Reaction as England reach World Cup quarter-finals – Monday’s sporting social

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