Can someone please explain if WBC (TLC) count rises only in bacterial infections, or can it also increase in viral infections?

Answered by 1 Apollo Doctors

Dr Shaik Kalam

General Practitioner

MD (Physician)
3+ Yrs

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Yes, WBC (TLC) can rise in both viral and bacterial infections. In viral infections, lymphocytes usually increase. In bacterial infections, neutrophils rise. CBC helps distinguish the likely cause.

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Take a CBC Test (Complete Blood Count) Test

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Answered 15/09/2025

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