Give scientific reasons for:

The wound caused by a dog bite should be flushed clean with soap and water.

Rabies is caused due to virus which is present in saliva of infected dog. When an infected dog bites it may cause wound, virus along with saliva will enter the blood of bitten person through wound. It may cause infection of virus. So the wound caused by a dog bite should be flushed clean with soap and water to provide protection against rabies.