जब पहले से ही किसी बीमारी से पीड़ित मरीज को किसी अन्य मेजबान (host) या बाहरी स्रोत से चिकित्सा परिवेश में संक्रमण हो जाता है, तो इस संक्रमण को क्या कहा जाता है?

With reference to cancer metastasis, consider the following pairs: Term — Description I. Metastasis — Spread of cancer cells from the primary site to distant organs II. Tumour microenvironment — Cellular and molecular surroundings influencing tumour growth III. Benign tumour — Tumour with unlimited invasive metastatic potential How many of the above pairs are correctly matched?

Prevention of non-communicable diseases requires modification of lifestyle factors such as diet, exercise and smoking to reduce: