A member asked:

Do viral infections show up on a full blood count, i got told they never?

2 doctors weighed in across 2 answers

Depends: A wide array of viruses exist. Some can cause abnormal blood work. It is really depending on which virus you are concerned about.

Answered 6/11/2013

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Dr. Michael Ein answered

Specializes in Infectious Disease

See below: Depending on the infecting virus patients with viral infections sometimes have a decreased white cell count and platelet count. Sometimes there are an excess of lymphocytes on the WBC differential and sometimes the lymphocytes are atypical. Often the complete blood count is normal.

Answered 1/28/2020

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What to do if I have a viral infection and throwing up blood?

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