Question:

Periodic appearence of malaria symptoms occurs due to periodic

Updated On: Aug 8, 2023
  • entry of merozoites into erythrocytes
  • attack of liver cells by merozoites
  • formation of signet ring
  • release of pyrogen in blood
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Paroxysm is the actual attack of malaria, which initially begins after a few earlist erythrocytic cycles but it is, then repeated after every cycle. Obviously paroxysm result due to sufficient accumulation of haemozoin and other toxins in blood.
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Ans: The periodic appearance of malaria is due to the release of pyrogen in the blood. Pyrogen are the substances that are released by the bacteria and can lead to fever. During malaria, the rupture of the intra erythrocytic schizonts will lead to release of merozoites. The merozoites will further enter the circulation and thus the RBC. 

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Common Diseases in Human Beings

Any adverse variation from an organism's normal structural or functional condition is usually associated with specific signs and symptoms and distinct from physical injury.

  • Acute Disease

A few diseases appear out of nowhere and persist only a few days. Acute diseases, such as the common cold, are examples of them. Acute diseases frequently become chronic if they are not treated.

Acute diseases include strep throat, fractured bones, appendicitis, influenza, pneumonia, and others.

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Acute diseases develop quickly and are accompanied by unique symptoms that necessitate immediate or short-term treatment and improve once treated. Acute illnesses, such as the common cold, can sometimes go away on their own.

  • Chronic Diseases

Chronic diseases are illnesses that develop over time and endure for a long time or even a lifetime. Chronic disease is defined as a disease that lasts more than three years. The symptoms are relatively modest at first.