2.5g - Challenges in Treatment and Control Flashcards
1
Q
Epidemiology is…
A
the study of the outbreak and spread of infectious diseases
2
Q
The herd immunity threshold is…
A
the density of resistant hosts in a population required to prevent an epidemic
3
Q
Vaccines contain…
A
antigens that will elicit an immune response
4
Q
What makes it difficult to find drug compounds that only target the parasite?
A
The similarities between host and parasite metabolism
5
Q
Antigen variation has to be…
A
reflected in the design of vaccines
6
Q
Why are vaccines difficult to design?
A
Some parasites are difficult to culture in the laboratory
7
Q
Challenges arise where parasites spread most rapidly as a result of…
A
overcrowding or tropical climates
8
Q
Overcrowding and tropical climates make…
A
co-ordinated treatment and control programs difficult to achieve
