महामारी विज्ञान त्रयी (Epidemiological triad) में तीन बुनियादी कारक एजेंट (कारक), होस्ट (मेजबान) और ________ हैं।

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:

Typhoid fever is caused by Salmonella typhi and is transmitted through ingestion of contaminated food and water, representing:

Excessive intake of saturated fats and lack of physical activity increase risk of cardiovascular diseases due to:

Foodborne infections are commonly caused by ingestion of contaminated food containing pathogenic microorganisms, leading to:

Hepatitis B virus is transmitted through exposure to infected blood, serum, or bodily fluids. Therefore, Hepatitis B is classified as a:

Amoebic dysentery is caused by the protozoan Entamoeba histolytica. Transmission primarily occurs through the fecal-oral route by consuming cysts in:

Kala-azar (Visceral Leishmaniasis) is transmitted to humans through the bite of an infected sandfly. Based on its mode of transmission, Kala-azar is classified as a: