The H5N1 virus, also known as bird flu, is spreading rapidly among dairy cows.

It's been found in over 85 herds across 12 states.

At least three farm workers have now been sickened by the virus and while public health officials say the risks to humans remain low concerns are growing.

William Bringham has more.

So how serious is this threat? has more.

So how serious is this threat and are we doing enough to keep our eyes on this evolving virus?

To answer that, we are joined by Rick Bright.

He's the former head of Barda, which is the US

government's lead agency for developing countermeasures for public health

emergencies. Rick Bright, thank you so much for being here.

You have called this a, quote, dangerous inflection point

that we are in right now.

And you recently wrote, quote, that if we keep ignoring

the warning signs, we have only ourselves to blame. What are the warning

signs that you're seeing right now and how are we ignoring them?

Well William, thanks for bringing more attention to this crisis, this situation.

We're seeing more and more animals, mammals in particular, infected with this virus.

And clearly, it's sustainability to infect dairy cattle and spread from cow to cow and we know that people are

really in close contact with these mammals and the more mammals are infected

more contact we have with them the more risk we have of infecting people.

We're starting to see that it happened over the last couple of months with three human cases.

So we've seen these several farm workers that you mentioned. The CDC mentioned that this

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