1. List ten factors that might influence the virulence of an infection.
Factors from both the parasite and the host can influence the severity of an infection.
Parasite/ Micro-organism Variables
1. Variability of gene expression of multiple pathogenic mechanisms (Ref 3)
2. Potential for damage or stress of the micro-organism (Ref 3)
3. Interactions with other organisms (Ref 3)
Variables of the Host
4. Age (Ref 3)
5. General health (Ref 3)
6. Pregnancy (Ref 3)
7. Metabolic disorders
8. Medications--OTC or prescription (Ref 3)
9. Immune competence (Ref 3)
10. Amount of food consumed (Ref 3)

2. Infectious diseases can be acquired through a number of different modes of transmission. List seven such modes and describe each in a sentence or two.
1. Food and waterborne diseases: They are transmitted by intake of contaminated food and drink. For example some diseases transmitted by food and water are hepatitis A, typhoid fever and cholera. (Ref 1)
2. Vector-borne......

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Title: Infections And Diseases
Approximate Word Count: 366
Approximate Pages: 2 (250 words per double-spaced page)

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