Keeping hands and the milking area under the cows as free as possible from dirt and contaminated milk will help to reduce the risk of transferring bacteria from cow to cow.
Low pressure, high volume washing water should be used to sluice away manure. High pressure hoses should NOT be used directly beneath or around cows, as these can create aerosols of bacteria-laden droplets to form and settle onto cows.
Clinical cases and chronically infected cows are a source of infection for healthy, young cows. If these mastitis cows are milked last, the risk of spreading infection is markedly reduced.