In many lands increased access to doctors and hospital care means that most diseases can be identified and treated before they become lethal.
स्वच्छता व शुद्ध पाणी पुरवठा असल्यास, कॉलेरा यासारख्या दूषित पाण्याने पसरणाऱ्‍या संसर्गजन्य रोगांचा फैलाव सहज रोखता येतो.