Answer:
Several major human health concerns are associated with intensive farming, including increased transfer of infectious agents from animals to humans, antibiotic resistance, food-borne illness, and the generation of novel viruses like swine flu in pigs.
Explanation:
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Mostly because the Roman empire was a hugely vast empire in time where the internet or any other form of fast communication possibilities didn't exist yet. For this reason, it would be highly unpractical for Rome to rely on having direct democracy and each person giving his vote on every aspect of life.