CSPI Antibiotics Resistance Project
Center for Science in the Public Interest
Human-use antibiotics are used as growth promoters
There is widespread use of human-use antibiotics in livestock production.
Much of that use is the routine and prolonged “subtherapeutic” dosing of animals with antibiotics (such as penicillin and tetracycline) to speed animal growth.
That use causes foodborne and other bacteria to become resistant to the same drugs used to treat bacterial infections in people.
CSPI petition to ban human-use antibiotics as livestock growth promotants (executive summary)