classify diseases on the basis of time of ocurrence?
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Answer:
acute disease:that lasts for a short period of time
eg headache.
chronic diseases:that lasts for a long period of time.
eg cancer, tuberculosis.
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The different categories of diseases based on the extent of occurrence are:
Epidemic diseases – diseases breaks out and spreads from place to place affecting a huge group of people at the same time.
Endemic diseases – this disease is found in a particular area only attacking less number of people.
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