dev, s blood report suggest that the X components in his blood has significant increase because he is suffering from an infection disease. Identify X.

The X components of Dev's blood, which increase significantly with infectious disease, are leukocytes.

Explanation:

Leukocytes, also called white blood cells, are the cellular components of the blood that are responsible for the body's defenses and protection.

When a pathogen —usually a bacterium— enters the body, an infectious disease occurs. In response to an infection, white blood cells increase in number in order to fight the infection.

This is why the X component of Dev's blood, leukocytes, increases significantly when Dev has an infectious disease.

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