Malaria Test Malaria Test QuestionQuestion

Study the two maps of Chad.

Chad and many other developing countries have been affected by water-related diseases including malaria, cholera and bilharzia/schistosomiasis.

Select one of the above diseases.

(i) Describe the physical & human factors which put people at risk of contacting the disease. (6)

• Describe and explain the measures that can be taken to combat the disease. (8)

• Discuss the effectiveness of the measures taken to combat the disease. (6)

(iv) Explain the benefits to a LEDC of controlling the disease. (6)

Remember....Remember....

Malaria Test QuestionMalaria Test Question

26 marks: 30 minutes time limit

Revision notes on the OHS website

Completed large poster to be presented as well

Wednesday Period 2.

Malaria Test QuestionMalaria Test Question(i) Describe the physical & human factors which put people at risk of contacting the disease. (6)Physical 16 deg C; humid; stagnant water; sheltering vegetationHuman high popn densities; irrigation; slums; medically vulnerable

(ii) Describe and explain the measures that can be taken to combat the disease. (8)LARVAE oil; egg; bti; bombing; fish; trees; drainingEDUCATION various formsADULT DDT spray; Malathion; bednets; genetics; clothes; personal sprays/roll-on; clear vegetationPARASITE prophylactics, before and after; vaccine

(iii) Discuss the effectiveness of the measures taken to combat the disease. (6)LARVAE oil; egg; bti (cost); bombing (cheap, cover all?); (all water?, pollution, other life); fish (protein); trees (long term); draining; (all water?); EDUCATION various forms; ADULT DDT spray; (cost and repetition) Malathion (cost, repetition); bednets; (cheap to give out, expensive to buy) genetics;(in process) clothes; personal sprays/roll-on (expensive); clear vegetation (realistic)PARASITE prophylactics, before and after; (plasmodium immunity) vaccine (in process) (L E A P)

(iv) Explain the benefits to a LEDC of controlling the disease. (6)Personal education, work, family life, birth rate, subsistence farming Economic medical spend, tourism, lost time, GNP

Vibrio cholerae > Vibrio cholerae > CholeraCholeraA water borne disease: water as the A water borne disease: water as the vectorvector

Schmallenbergvirus

Plasmodium> MalariaPlasmodium> MalariaA blood borne disease: mosquito as the A blood borne disease: mosquito as the vectorvector

Plasmodium Plasmodium falciparumfalciparum

✗✗✗✗✗✗

✓✓MalariaMalariaMosquito as vector: ONLY AS ADULTMosquito as vector: ONLY AS ADULT

__ __ __ __ __ __ __ __

__ __ __ __ __ ✗✗V

i r u

s

B

a t e r i a

__ __ __ __ __ __ __ __ P a r a s i t e✓✓

A virus is a small infectious agent

that can replicate only inside the living

cells of an organism.

A large range of microorganisms with no true nucleus producing their own food

A large range of microorganisms with no true

nucleus

Plasmodium is a one celled parasite that eats off another

organism

c ✗✗