流行鏈球菌又稱為獸疫鏈球菌或马链球菌兽瘟亚种（学名：Streptococcus zooepidemicus，Streptococcus equi subsp. zooepidimicus），是一種流行性致病細菌，屬於兰斯菲尔德C组鏈球菌。此物种可引起多種動物感染發病，通常存在於動物的皮膚、呼吸道、扁桃體及生殖道，可导致各種家畜的炎症和敗血症，其中以馬最易感染。其臨床症狀主要表現败血症、腦膜炎和關節炎等。雖然主要是使動物發病，但它也是人畜共患的病原菌，雖然不是很常見，但人類也可因攝入被該菌污染的食品或與生病動物接觸，而感染該病。國際間相關醫學報導屢見不鮮。如流行鏈球菌在2016年8月於美國西雅圖就曾再度發生致死的病例。
2018年10月美國一間動物收容所因爆發流行鏈球菌“Strep Zoo”群聚感染事件而關閉。
2019年5月，一位南非女孩也因流行鏈球菌突然失去視力。
外部連結
*[https://www.livescience.com/55666-horse-riding-infection.html Woman's Deadly Infection Linked to Horse Riding ]
*[http://www.cbsnews.com/news/seattle-woman-caught-deadly-infection-from-horse/ Doctors: Woman caught deadly infection from horse- CBS News]
*[http://www.cbs46.com/news/animal-shelter-shut-down-after-strep-zoo-outbreak/article_17918d16-d382-11e8-9527-7307ba515c0c.html/ Animal shelter shut down after 'Strep Zoo' outbreak- CBS46 News]
*[https://www.horsetalk.co.nz/2019/05/23/bug-horses-vision-loss-girl/ Bug normally linked to horses caused temporary vision loss in a girl]
參考文獻
*[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3713971/ Transmission of Streptococcus equi Subspecies zooepidemicus Infection from Horses to Humans, Emerg Infect Dis. 2013 Jul, 19: ((7)): 1041–1048.]
*[https://www.omicsgroup.org/journals/a-fatal-infection-caused-by-streptococcus-equi-zooepidemicus-an-emerging-pathogen-for-humans-2165-7548-1000248.php?aid=41616 A Fatal Infection Caused by Streptococcus Equi Zooepidemicus: An Emerging Pathogen for Humans, Emerg Med (Los Angel) March, 2015 5:248]
*[https://equusmagazine.com/blog-equus/streptococcus-equi-cdc-horse-owners-woman-died-53738 Streptococcus Equi: What the CDC Wants Horse Owners to Know About Bacterial Infection Transmission from Horses]
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