The study of those factors in the environment that affect human health is called? - Answers
Environmental health science
Which model for improving environmental health does the figure above represent? - Answers
Environmental stewardship model
Which of the following turns a biotic region into an epidemiological region? - Answers Shared
climate, altitude, and latitudinal range
Malaria (the third largest killer disease in the world), yellow fever, dengue fever, encephalitis and
the West Nile Virus (WNV) are diseases vectored by mosquitoes. Unlike the other diseases,
what account(s) for continued transmission of WNV in temperature climates of the USA,
overcoming the break in the transmission cycle caused by the death of mosquitoes in winter? -
Answers A and C only
The figure above shows the yellow fever transmission chain. What is the most significant
implication of such a chain for disease control policies? - Answers It shows close
disease/environment connection
All the following control methods depend on and illustrate a good understanding of a vector
ecology for the disease, EXCEPT - Answers Use of malaria treatment or prevention pills
Silent zones of disease are areas where environmental factors of agent, vector and reservoir
overlap to cause disease systems while a __________________________ is particular instance of
this for geographically limited areas within which such environmental conditions maintain an
infection among wild animals and arthropod vectors disease: - Answers natural nidus
HIV/AIDS can have significant implications on the environment in developing countries because:
- Answers All of the above
Anthropo-zoonosis
Direct Human to human
Vectored Zoonosis
Vectored human diseases
Zoonosis; direct - Answers D
A
C
B