Medically reviewed by Dr. Po-Chang Hsu, MD, MS Medical Professional Updated – January 4, 2021 Dr. Po-Chang Hsu is a medical doctor from Tufts University in Boston, Massachusetts, interested in pediatrics and neonatology. View LinkedIn profile What is Influenza? Influenza is a virus that causes a syndrome characterized by fever, … Continue reading Influenza – Diagnosis, Symptoms, and Treatment