HLT 4310 EXAM 2 QUESTIONS WITH VERIFIED ANSWERS

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HLT 4310 EXAM 2 QUESTIONS WITH VERIFIED ANSWERS

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HLT 4310 EXAM 2 QUESTIONS WITH VERIFIED
ANSWERS

Environmental factors associated with observed increases in infectious diseases -
Answers - 1. Movement of humans (war, migration, travel)
2. Ecological changes (deforestation, conversion of grasslands)
3. Climate change (warmer climates)
4. Decrease in surveillance
5. Antibiotic resistance
6. Increasing urbanization overwhelming sanitation

Methods for Transmission of Zoonoses - Answers - Contact with the skin
A bite or scratch from an animal
Direct inhalation or ingestion
The bite of an arthropod vector

Diseases transmitted by ticks - Answers - lyme disease

Diseases transmitted by mosquitoes - Answers - dengue, yellow fever, chikungunya,
zika, west nile, malaria

Diseases transmitted by rodent - Answers - hantavirus

Diseases transmitted by sand fly - Answers - leighmaniasis

Disease transmitted by fleas - Answers - plague

Disease transmitted by snails - Answers - schistosomiasis

Chemical benefits of pesticides - Answers - increase crop yields
Fewer rodents
Decrease major diseases

Alternatives to pesticides - Answers - Integrated pest management, natural pesticides,
pathogens, gm crops

Why is foodborne illness increasing - Answers - 1. Changes in agricultural and food
processing methods- use of nitrate fertilizers (human health and eutrophication),
chemicals and machinery
2. Increasing globalization- poor hygiene for ag workers around the world and importing
food containing bad pesticides from other countries

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Uploaded on: August 2, 2026
Number of pages: 2
Written in: 2026/2027
Type: Exam (elaborations)
Contains: Questions & answers

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