malaria test question study the two maps of chad. chad and many other developing countries have been...

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 ✗✗