Not necessarily, many viral infections particularly in babies can cause a lowered white blood cell count.
Sometimes white blood cell counts are low when there is an infection that is so severe, the body cannot manufacture the disease fighting cells fast enough to fight the infection.
By Mayo Clinic staff
A low white blood cell count usually is caused by one of the following:
* Viral infections that disrupt bone marrow function
* Congenital disorders characterized by diminished bone marrow function
* Cancer or other diseases that damage bone marrow
* Autoimmune disorders that destroy white blood cells or bone marrow cells
* Overwhelming infections that use up white blood cells faster than they can be produced
* Drugs that destroy white blood cells or damage bone marrow
Specific causes of low white blood cell count include:
Neutropenia can occur in acute bacterial infections, viral infections, rickettsiae disease, some parasite injections, aplastic and pernicious anemia, acute lymphoblastic leukemia, some hormone imbalances and anaphylactic shock.
Other causes of low white blood cell count include: Influenza, systemic lupus erythematosus, Hodgkin's lymphoma, some types of cancer, typhoid, malaria, tuberculosis, dengue, Rickettsial infections, enlargement of the spleen, folate deficiencies, psittacosis and sepsis. Many other causes exist, such as a deficiency in certain minerals such as copper and zinc.
· 1 decade ago