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herd impact

YouTubeRoots So Deep (you can see the devil down there)

Husband and wife ranchers Emry Birdwell and Deborah Clark have been going against the grain of North Texas ranching for decades – hiding their ability to raise many, many more cattle per acre than any of their neighbors. They are a fiery couple, prone to snips as they get their field work done – they are in their 60s, and run the 14,000 ...

已浏览 8.6万次2020年5月15日

Herd immunity Vaccination

What is herd immunity?... - World Health Organization (WHO)

What is herd immunity?... - World Health Organization (WHO)

FacebookWorld Health Organization

已浏览 3297.4万次2021年2月18日

What is herd immunity?

What is herd immunity?

livescience.com

2020年7月13日

What's causing measles outbreaks?

What's causing measles outbreaks?

CBS NewsStephen Stock,Leigh Ann

2024年1月23日

热门视频

Fort Worth The Herd | Herd Experience

Fort Worth The Herd | Herd Experience

2018年11月11日

Herd immunity (Herd protection)

Herd immunity (Herd protection)

2023年3月28日

Carbon Cowboys - This is an excerpt from “herd impact” -...

Carbon Cowboys - This is an excerpt from “herd impact” -...

FacebookCarbon Cowboys

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Herd immunity Controversy

Understanding herd immunity

Understanding herd immunity

FacebookMayo Clinic

已浏览 3.5万次2020年5月9日

herd immunity

FacebookChina Daily

已浏览 4313 次2020年5月11日

‘Likelihood of reaching herd immunity at this point is fairly low’: Epidemiologist

‘Likelihood of reaching herd immunity at this point is fairly low’: Epidemiologist

YahooYahoo Finance Video

已浏览 25.6万次2021年7月20日