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Which Infections Increase Lymphocytes?

Published in Infectious Diseases 1 min read

Several infections can lead to an increase in lymphocytes, a condition known as lymphocytosis. Here's a breakdown of infections known to cause this:

  • Acute lymphocytic leukemia
  • Babesiosis
  • Brucellosis
  • Cat-scratch disease
  • Chronic lymphocytic leukemia
  • Cytomegalovirus (CMV) infection
  • Hepatitis A
  • Hepatitis B

In essence, lymphocytosis, while sometimes benign, can be indicative of the body's immune system mounting a response to fight off various infections, including both viral and bacterial origins. The specific infection and resulting immune response directly influence the degree and duration of elevated lymphocyte counts.