You've likely heard some scuttlebutt in the community about Mosquitos and Japanese Encephalitis. To help clarify, see below directions from NSW Health:
Japanese encephalitis virus is spread by mosquito bites. It has been detected in parts of the southern, western and New England area of NSW following recent heavy rains.
The best course of action is to avoid mosquito bites to prevent infection:
cover up while outside with loose, light-coloured clothing and covered footwear
avoid being outdoors at dawn and dusk
apply insect repellent on exposed skin that contains DEET, picaridin, or oil of lemon eucalyptus
use insecticide sprays, vapours dispensing units and mosquito coils to repel mosquitos
cover openings such as windows and doors with insect screens
remove water-holding containers outside your house where mosquitos can breed.