Sara could not attend the school for a week and her mother did not go to office for six months due to different ailments

Sara could not attend the school for a week and her mother did not go to office for six months due to different ailments. Which category of diseases are they suffering from? Give an example of each of the above categories.

Sara is suffering from an acute infectious disease. Her mother, however is suffering from a chronic disease. Acute disease lasts for a shorter duration and does not cause any damaging effect, e.g. malaria. Chronic disease lasts for a long duration and causes damage to the affected organs, e.g. tuberculosis.