Wiki Sumber Informasi iSIKHNAS

• the nature of the causal agent (eg toxin, infectious, viral, bacterial, etc)
• the source of the agent (eg environmental, species jump, introduced animals, endemic infection, etc)
• the method(s) of transmission (eg direct contact, food-borne, vector-borne, etc)
• why the incident has occurred (eg change in herd immunity levels, introduction of new disease, change in management practices, etc)
• risk factors for disease (eg exposure to specific feed components, or potential sources of infection)