First-ever human case of H5N2 bird flu reported in Mexico, WHO says | CNN Even as the United States grapples with an outbreak of H5N1 flu in dairy cattle, the World Health Organization has announced the first known human infection with a different strain, H5N2, in a person in Mexico who died of complications of their infection. Brenda Goodman CNN

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Farmers must kill 4.2 million chickens after bird flu hits Iowa egg farm More than 4 million chickens in Iowa will have to be killed after a case of the highly pathogenic bird flu was detected at a large egg farm. AP News

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Crews are in the process of killing 4.2 million chickens after the disease was found at a farm in Sioux County, Iowa, making it the latest in a yearslong outbreak that now is affecting dairy cattle as well. Last week, the virus was confirmed at an egg farm west of Minneapolis, Minnesota, leading to the slaughter of nearly 1.4 million chickens.

Avian flu is in cows in the US - is it inching closer to humans? The H5N1 strain of avian flu has been around since 1996, but until now its been largely confined to animals. But it has now jumped to cattle in America and some think it means we are inching towards eventual human-to-human infection, with potentially serious consequences. BBC News

... the (spread of the virus between states seems to be down to the movement of infected cows across state lines. ...

Reporting and surveillance of cattle movement in the US is poor compared with the UK and Europe where the BSE outbreaks of the mid-nineties led to all cows having to be tagged.

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Five things to know about bird flu

There have been major outbreaks around the world in the recent past, including four from 2014 to 2017, according to the Centers for Disease Control and Prevention.

So what makes this time different, and at what point should you be concerned?

Here are five things you should know about bird flu.

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