mammary glands

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.

“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.”

It is produced by bacteria that live in the mammary glands of cows, but microbes in the human gut produce similar lantibiotics too.

Sometimes called “first milk,” colostrum is the first form of milk produced by the mammary glands of all mammals immediately after the delivery of a newborn.