---
title: "Influenza B: Symptoms, Causes, Diagnosis, Treatment"
description: "Influenza B is a contagious flu virus that causes fever, aches, and cough. Know symptoms, care steps, and when to get help—no referral."
canonical: "https://www.vitalsvault.com/conditions/influenza-b"
last-updated: 2026-08-22
---

# Influenza B: Symptoms, Causes, Diagnosis, Treatment

> Influenza B is a contagious flu virus that causes fever, aches, and cough. Know symptoms, care steps, and when to get help—no referral.

---

Canonical HTML: https://www.vitalsvault.com/conditions/influenza-b
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