�y��vlog

“The reason is because Holsteins produce more milk. So they have more volume for the virus to enjoy,” she said, noting research showing the virus’ affinity for mammary tissue.

The appearance of the virus in mammary glands — in cattle and even in non lactating mice — was also unexpected.

In two of the tested mice, the virus was found in the mammary glands.

Researchers had discovered antibodies against H5N1 in a slice of a mammary gland.

“And this preprint said that cows have both avian and human receptors in the mammary glands as well as other areas of the cow, which may suggest that they're a mixing vessel.”