long essay on diseases
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Answer:
In the less developed countries, where nearly 80 per cent of the world population live, infectious agents, parasites and nutritional deficiencies still are the main cause of morbidity (illness) and mortality (death).
Gastrointestinal infections (diarrhea, dysentery and cholera) probably cause more deaths worldwide than any other group of diseases. Again, malnutrition and diarrhea create a vicious cycle. Poor nutrition makes people more susceptible to infection and infections, in turn, make it more difficult to obtain, absorb and retain food.
Improved sanitation and better nutrition could prevent most, if not all. Similar other infectious diseases like malaria, parasitic worm infections, tuberculosis and allied respiratory hazards, tetanous, etc., took lives of millions, particularly in poor nations.
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