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The researchers analyzed 493 gut samples from foxes, crows, magpies, and water birds \u2013 and found Klebsiella bacteria in 32 of them.<\/p>\n
At the University of Parma (UNIPR<\/a>), Dr. Mauro Conter documented 10 Klebsiella pneumoniae isolates in wildlife that never received antibiotics.<\/p>\n Most of those isolates came from water birds, while one fox carried NDM-5, a resistance trait tied to drugs doctors often save for the hardest infections.<\/p>\n That mix of ordinary wildlife and clinically important resistance stopped this finding from ending as a local curiosity and pushed it toward a larger public-health warning.<\/p>\n Why these particular animals?<\/p>\n Foxes patrol short ground routes, while crows, magpies, and water birds move across towns, farms, rivers, and wetlands.<\/p>\n Because they feed near waste, surface water, and human leftovers, they pick up resistant bacteria without ever taking antibiotics.<\/p>\n In that role they act as sentinels, living indicators that reveal contamination<\/a> moving through shared environments.<\/p>\n Different travel patterns mattered because foxes hinted at local spread, while birds pointed to longer routes that humans rarely see.<\/p>\n Bacteria that resist treatment <\/p>\n Many of the bacteria could survive drugs<\/a> that doctors depend on to treat serious infections. Some could even resist medicines used only when most other treatments no longer work.<\/p>\n In one case, a fox carried bacteria<\/a> able to break down those last-resort drugs before they could do their job.<\/p>\n When bacteria can defeat several kinds of treatment at once, the options for stopping infections shrink quickly.<\/p>\n Only 2% of all animals carried K. pneumoniae, yet that low number still signaled contamination reaching places without direct antibiotic pressure.<\/p>\n Water and waste make that spread possible because bacteria leave people and livestock, then keep circulating through streams, runoff, and sewage.<\/p>\n \u201cEven a 2% prevalence in wildlife represents environmental contamination by high-risk clones,\u201d said Dr. Conter.<\/p>\n Resistance beats clinics<\/p>\n Across Europe, the latest report<\/a> still tracks resistant K. pneumoniae as a persistent bloodstream infection problem. <\/p>\n The UNIPR team compared its isolates with routine hospital surveillance. \u201cOur study showed that wildlife resistance exceeds clinical rates,\u201d said Conter.<\/p>\n In the wildlife samples, every case resisted two major types of antibiotics, and most also resisted another commonly used treatment.<\/p>\n Numbers that high in animals with no prescriptions suggest the environment is doing more than passively storing resistance.<\/p>\n Common sources of contamination <\/p>\n Behind those resistance patterns sat ST307<\/a>, one successful lineage of K. pneumoniae already tied to hospital outbreaks.<\/p>\n Rather than appearing as unrelated wild strains, the Italian isolates pointed back to a form already built for persistence and spread.<\/p>\n All ten K. pneumoniae isolates belonged to that lineage, which tied fox and water bird findings into one story.<\/p>\n Seeing one clone across different animals hints at common contamination sources, not a string of isolated events.<\/p>\n Shared DNA in bacteria<\/p>\n Resistance was not scattered randomly, because several isolates carried the same plasmid<\/a> \u2013 a DNA ring bacteria can swap.<\/p>\n That small piece of shared DNA carried protection against several antibiotics at once, letting those defenses spread together.<\/p>\n Nine of the ten K. pneumoniae isolates appeared to share most or all of that genetic cargo.<\/p>\n When one piece of DNA carries several defenses, bacteria do not need separate lucky mutations to become hard to treat.<\/p>\n Pollution fuels the spread<\/p>\n Wastewater, manure runoff, and weak sewage treatment give resistant bacteria repeated chances to leave human settings and persist outdoors.<\/p>\n Less antibiotic pollution matters because fewer drug traces in water reduce the pressure that favors bacteria already carrying resistance genes.<\/p>\n \u201cThis confirms the role of wildlife as reservoirs of clinically relevant resistance, which means that wildlife surveillance could provide an early warning system of resistance spreading beyond clinical settings,\u201d said Conter.<\/p>\n That logic fits One Health<\/a>, an approach linking human, animal, and environmental health, because the same bacteria move across all three.<\/p>\n Limitations of the study <\/p>\n Important limits remain because the team was not trying to prove a direct chain from wildlife to human infections.<\/p>\n Sampling relied on dead animals recovered after trauma or predation, so the results could miss other carriers in the region.<\/p>\n The lab method favored resistant bacteria, which can make those strains look more common than they really are.<\/p>\n Even with those limits, finding hospital-linked resistance outside hospitals was strong enough to demand wider monitoring, not weaker concern.<\/p>\n Foxes and birds did not create this resistance problem, but they revealed how far it had already traveled.<\/p>\n Routine wildlife sampling, cleaner wastewater, and tighter antibiotic use would catch contamination earlier and slow the cycle feeding back to people.<\/p>\n The study is published in the journal Frontiers in Microbiology<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.<\/p>\n Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"A new study has found that foxes and birds in northern Italy carry a hospital-linked bacterium that resists…\n","protected":false},"author":2,"featured_media":540177,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[59,102,56,54,55],"class_list":{"0":"post-540176","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-health","8":"tag-gb","9":"tag-health","10":"tag-uk","11":"tag-united-kingdom","12":"tag-unitedkingdom"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/540176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=540176"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/540176\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/540177"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=540176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=540176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=540176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}