5. challenges in treatment and control

Question 1

what is epidemiology?

Answer 1

Epidemiology is the study of the outbreak and spread of infectious disease

Question 2

what is the herd immunity threshold?

Answer 2

The herd immunity threshold is the density of resistant hosts in the population required to prevent an epidemic

Question 3

what do vaccines contain?

Answer 3

Vaccines contain antigens that will elicit an immune response

Question 4

what makes it difficult to find drug compounds?

Answer 4

The similarities between host and parasite metabolism makes it difficult to find drug compounds that only target the parasite

Question 5

what has to be reflected in the design of vaccines?

Answer 5

Antigenic variation has to be reflected in the design of vaccines

Question 6

what is difficult to culture in the lab?

Answer 6

Some parasites are difficult to culture in the laboratory making it difficult to design vaccines

Question 7

where do challenges arise?

Answer 7

Challenges arise where parasites spread most rapidly as a result of overcrowding or tropical climates

Question 8

what is difficult to achieve?

Answer 8

These conditions make co-ordinated treatment and control programs difficult to achieve

Question 9

what are practical control strategies?

Answer 9

Civil engineering projects to improve sanitation combined with co-ordinated vector control may often be the only practical control strategies

Question 10

what does improvements in parasite control reduce?

Answer 10

Improvements in parasite control reduce child mortality and result in population-wide improvements in child development and intelligence, as individuals have more resources for growth and development