This question was attempted by many candidates and their performance was good.  In
part (a) candidates could not give correct answers, they wrote wrong answers such as drinking unpurified water, using unpurified water to cook, cause water borne diseases as answers to water-borne disease.           

In part (b) candidates correctly copied and completed the table, although, some candidates mistook bacteria as the causative agent of rabies and measles.  In part (c) candidates could not correctly explain how the pill and foaming tablets prevent pregnancy.  They only mentioned that the pill and foaming tablets are methods of avoiding pregnancy meanwhile they were required to explain how each of the methods  prevents pregnancy.  In part (d)(i) and (ii) candidates correctly state advantages of family planning and methods of controlling AIDS.

However, the expected answers are as follows:                                                                    

3(a)      WATER-BORNE DISEASE

1. river blindness / onchocerciasis
2. guinea worm
3. hookworm
4. cholera
5. typhoid fever
6. dysentery/diarrhoea
7. schistosomiasis/bilharziasis

                
(b)

(c)        EXPLANATION ON HOW THE FOLLOWING METHODS OF
            CONTRACEPTION PREVENT PREGNANCY

(i)         THE PILL

1. the chemical / hormone in the pill
2. prevents ovulation
3. stops maturation of the eggs  

(ii)        FOAMING TABLETS

1. produces foam
2. kills the sperms
3. act as barrier

            
(d)(i)    ADVANTAGES OF FAMILY PLANNING

1. to maintain good standard of living / life
2. to avoid pressure on health / educational / transport /social facilities
3. maintains health of children
4. decreases infant mortality
5. maintains health of parents
6. reduces maternal death
7. controls population explosion
8. ensures good child spacing
9. allows couples to have the number of children they can cater for
10. preventing unwanted pregnancy/child dumping 

            (ii)        METHODS FOR CONTROLLING AIDS

1. avoid casual sex / do not have sex with an infected person
2. screen blood before transfusion
3. use of condoms
4. avoid sharing blades, strings, needles and sharp objects
5. faithfulness
6. abstinence from sex with strangers/avoid premarital sex
7. avoid kissing strangers
8. people should go for regular test to know their HIV status.