GMO Cows Can Make Human Antibodies

Cows are big hulking creatures—not so great for tipping over while drunk, but great for turning into living factories that make massive quantities of antibodies. Scientists have inserted a modified human chromosome to cows that can now make human antibodies for hantavirus. Other deadly disease like Ebola and MERS could come next.

…These antibodies from these genetically modified cows, however, would be basically indistinguishable from those made in a human body after purification. Cows are much bigger and more efficient than mice, too; a single cow could make up to 1,000 doses a month. Someday, cow-men could save your life.

Source: Cows With Human Chromosomes Can Now Make Human Antibodies

I wonder about the volume that could be produced taken into consideration with the resource footprint.   Cows need more food and space.  More importantly, what if they become self-aware: