In a surgical post-op Ward , a patient developed a wound infection . Subsequently 3 other patients developed similar infections in the ward. What is the most effective way to limit the spread of infection

Given the prominence of cross infection , hand washing is the single most impoant preventive measure in the hospital . Use of alcohol hand rubs between patient contacts is now recommended for all health Care workers except when the hands are visibly soiled , in which case washing with the soap and water is required - Harrison 15/e