Why does a toddler's heart beat faster after getting influenza B?
Disease description:
The baby recently contracted influenza B and now has an increased heart rate. What should be done?
Doctor's answer (1)
Dr. Zhou Xiaofeng
After influenza B infection in young children, increased heart rate may occur because influenza B is a viral infection often accompanied by fever. When body temperature rises, heart rate increases accordingly to help cool the body. Influenza B virus infection triggers an inflammatory response in the body, including blood vessel dilation and immune system activation, which may lead to elevated heart rate. Additionally, the influenza B virus can affect the central nervous system, causing abnormal nerve conduction that may also result in tachycardia. Medical attention is recommended promptly.
