2.5g - Challenges in Treatment and Control Flashcards
(10 cards)
Epidemiology is…
the study of the outbreak and spread of infectious diseases
The herd immunity threshold is…
the density of resistant hosts in a population required to prevent an epidemic
Vaccines contain…
antigens that will elicit an immune response
What makes it difficult to find drug compounds that only target the parasite?
The similarities between host and parasite metabolism
Antigen variation has to be…
reflected in the design of vaccines
Why are vaccines difficult to design?
Some parasites are difficult to culture in the laboratory
Challenges arise where parasites spread most rapidly as a result of…
overcrowding or tropical climates
Overcrowding and tropical climates make…
co-ordinated treatment and control programs difficult to achieve
The only practical control strategies may often be…
civil engineering projects to improve sanitation, combined with co-ordinated vector control
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
