That rather depends on what disease they are carrying. Perfectly healthy cows can also produce milk containing bacteria - hence ,milk is normally pasteurised before use/sale.
yes
lactobacillus
It depends what it has been contaminated with. Fresh raw milk is not diseased.
The liquid secreted during lactation is milk. This is how farmers get milk from cows, by giving them hormones that make them pregnant all the time so they produce lots of milk.
Prolactin is milk ejecting hormone.It is secreted by Posterior Pitutory.
yes there are many helpful microbes like lactobacillus that helps in making some milk products
this is the poisoning by microbes in stale cheese or milk
Prolactin is the hormone. It is secreted by anterior pituitary.
Rennin or chymosin is secreted in the fourth stomach of a cow. See the related link for more information.
No, it is not safe, the microorganism (B. anhracis) is secreted in the milk of animal infected with anthrax. You can acquire the disease by drinking this milk.
It is not normal to drink platypus milk. Especially since they don't have teats and the milk is secreted into the fur to be sucked out of a special groove by the young.
a white nutritious liquid secreted by mammals and used as food by human beings