Introduction to Health & Disease in Individual Populations (1)

Question 1

What is the epidemiologic triad?

Answer 1

agent
host
environment

Question 2

What is amplification?

Answer 2

when infectious agents multiply rapidly to high levels

as animal diseases wax and wane with time, conditions such as close proximity with humans there is a chance for spillover. Following spillover, it sometimes leads to amplification in another species, animal or humans. When spillover occurs, it can result in rapid increase of disease in another species, this is known as amplification.

Question 3

Why are we seeing emerging disease?

Answer 3

environmental temperatures
human industrial capability
human encroachment

Kuru disease in Papua New Guinea due to cannabilism —> leads to progressive dementia that’s infectious

less space between us and animals - urbanization

global travel

antimicrobial resistance

live animal (bird) market

immunocompromised people

Question 4

What are the 2 most important reasons for seeing emerging diseases?

Answer 4

land use and ecosystem changes

climate and weather