健康 · 奶牛场禽流感禽流感再次出现在科罗拉多州一家奶牛场。这对牛奶和工人意味着什么？文字 2026年10月31日 UTC 10:11观看文字实录0:07Routine milk testing found avian flu in a dairy's bulk tank.0:10The operation is under quarantine, marking Colorado's first confirmed dairy case of0:15highly pathogenic avian influenza since two thousand and twenty-four.0:18The immediate question is what that finding means for people drinking milk and0:22people working with the herd.0:23The affected dairy is in Weld County in northern Colorado.0:26State officials place the operation under quarantine to prevent the virus from0:29spreading.0:29The restrictions apply to that dairy.0:31The USDA's National Veterinary Services Laboratory confirmed the infection.0:35Colorado's Department of Agriculture announced it on October30 th,2026.0:39That's the announcement date, and the first since2020, four milestone applies0:44specifically to dairy cases of highly pathogenic avian influenza, often shortened to0:48HPII.0:49A bulk tank holds pooled milk from the herd.0:51Testing that milk can identify a problem at the operation, but a positive result0:55doesn't tell us how many cows are infected.0:57It also doesn't tell us whether they showed symptoms before testing.1:06The confirmed finding puts the dairy into containment.1:08The number of infected cows hasn't been announced, so the pooled milk result gives1:13officials a starting point for responding without measuring how far infection has1:16spread through the herd.1:17Handling cattle and milk at the operation now carries consequences for containing1:21the virus.1:21The quarantine is intended to prevent spread.1:24Officials haven't detailed its movement restrictions, so farmers elsewhere shouldn't1:27read this as an announcement of a countywide quarantine.1:30Colorado confirmed H5N1 in Northeastern Dairy Cows on April25,2024 .1:36That December, the national milk testing strategy began.1:38The new Weld County announcement came on October30 th,2026 .1:42This detection came through routine testing, though officials haven't identified the1:46particular testing program responsible.1:48The2020 ,4 outbreak affected64 Colorado dairies.1:52That earlier outbreak gives the return of the virus its context.1:55The new response concerns the affected Weld County operation, and the historical1:59total describes what happened two years ago.2:01State officials say the risk to the general public is low, and pasteurized milk2:05remains safe because pasteurization kills viruses.2:08Pasteurization is the heat treatment used to make milk safe.2:11That reassurance applies to milk that's been treated this way.2:14Raw milk hasn't undergone that treatment.2:16Colorado's milk program guidance says selling raw cow, goat, or sheep milk for human2:21consumption is illegal in the state.2:23Officials haven't said what happened to milk from the affected dairy.2:26For workers handling the herd and its milk, the low-risk assessment for the general2:29public doesn't settle their own potential exposure.2:32Officials haven't described worker follow-up or announced worker test results.2:35Further testing and follow-up will be consequential for understanding the reach of2:38this detection.2:40Officials also haven't announced a date for ending the quarantine or the conditions2:43the dairy must meet to be released.阅读文章事件时间线HeyDex
