Eradicating disease

Question 1

It has also been difficult to eradicate other infectious diseases due to

Answer 1

Unstable political situations in areas such as Africa, Latin America and parts of Asia, perhaps resulting in civil unrest or wars

Lack of public health facilities (poor infrastructure, few trained personnel, limited financial resources)

Question 2

Eradicating disease presents a challenge
On one hand some pathogens are simply complicated and present with disease processes that are not straightforward and so a successful vaccine has not been developed

On the other hand, diseases that could be eradicated where a vaccine does exist, have not been eliminated because

Answer 2

too few in the community have been vaccinated

Question 3

Remember vaccines trigger the primary immune response (T helper cells trigger B plasma cells to secrete specific antibodies) which leads to the production of memory cells which will give a faster and greater (higher concentration of antibodies) during the secondary response.Remember for a disease to be eradicated by a vaccine it should not:

Answer 3

Mutate
Have a life cycle that includes other organisms
Have symptoms that make it hard to diagnose or trace