|Livestock to 2020 - The Next Food Revolution. 2020 Vision for
Food, Agriculture, and the Environment. Discussion Paper 28.
(IFPRI, 1999, 79 p.)| Livestock production is a source of risk
to human health in both low- and high- intensity production
systems. Risks exist not only from the uncontrolled endemic
diseases found in developing regions, but also from those that
appear in highly developed production systems when animal
concentrations are high, feeds contain contaminants, or meat and
milk are improperly handled. Humans are exposed to these risks
through several pathways. Zoonotic diseases, those shared by
humans and animals, can mutate and spread in animal hosts before
passing to humans. Animal wastes can carry disease or chemical
toxins into the environment. And milk and meat can expose humans
to disease and toxins contained in the animals or produced by
improper handling and processing. Although great progress has
been made in controlling endemic diseases of animals,
intensification of both traditional