Final answer:
Leukocytosis is a condition characterized by an abnormal increase in the number of white blood cells. It can be associated with infections, leukemia, and chronic diseases. However, despite the high count of white blood cells, they may not function properly, increasing the individual's risk for disease.
Step-by-step explanation:
When there is an abnormal increase in the number of white blood cells, it is called leukocytosis. This condition can be associated with infections, such as viral or fungal infections, tuberculosis, and some forms of leukemia and chronic diseases. In leukocytosis, although there is a high count of white blood cells, the cells themselves are often nonfunctional, which leaves the individual at an increased risk for disease.