Moderate complications of type B flu include sinus and ear infections, while the development of pneumonia or the inflammation of the heart, brain, and muscle tissues cause significant threats. Since the flu virus is an infection in the respiratory tract, it can cause inflammatory reactions in vulnerable populations and can lead to sepsis. Also, type B flu makes chronic medical problems worse. It can prompt attacks in people with asthma, and those with chronic heart disease may experience a multitude of symptoms including heart palpitations.

Sasiistock / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.