An increase in domestic pigs required a further expansion in agriculture.

This pattern of transmission can expand to include domestic pigs.

However, within groups of domestic pigs the virus can also be transmitted by contagion.

Far more common was pork, as domestic pigs required less attention and cheaper feed.

The viruses in this family infect domestic pigs and their relatives.

"Wild boars" now present in Sudan are derived from domestic pigs.

Fatback is a cut of meat from a domestic pig.

By 1909 it had spread to domestic African pigs.

The domestic pig is mostly used for its meat, pork.

Human infection caused by the domestic pig varies from country to country.