CO885-(7-8) — Page 220

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to the disease as they grow up, wil the adults do not suffer from malarin, the organisin is very frequent in the blood of native children, and anopheles in or hear native huts are very commonly infected. Hence anyone who sleeps in or even near native quarters runs the risk of being bitten by an infected "anopheles and of eatching malaria.

3. By preventing malarious persons front Being bitten by mosquitos. A non-infected anopheles is charmless; it is only when it has fed on blood of a malarious person that it can propagate malaria.

The above are the most important means of prevention, but much may be done by diminishing the mumber of anopheles. These very frequently breed in small pools, and puddles of water on the ground---puddles mostly of a fairly permanent description. kept filled by the main and not liable to scouring out during heavy showers. Hence, if these pools are filled up or otherwise abolished, the number of anpheles may be largely diminished. and the chance of infection correspondingly lessened.

The increase of anopheles is also diminished by pouring kerosène, &c., on their breeding puols.

These measures should not by neglected, but the most important steps are :—

1. To avoid sleeping or living near nativé huts or other haunts

of malaria-infected anopheles.

2. To avoid being bitten by infected mosquitos, which is best

effected by avoiding afl mosquito bites,

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C.O.885

7

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