High fever can be very serious is serious. Every high fever is not always flu. Bacterial infection lik bronchitis and pnumonia can also caus high fever. The proper treatment is critical for any infection to stop the serious consequences. Flu should be distinguished from bacterial infection as untreated bacterial infection can lead serious complications. Sometimes flu can also be accompanied by pneumonia and both infections should be treated simultaneously. Dr. Usha Jain who is the medical director in the emergency clinic explores the possibility of flu and bacterial infection and treats accordingly. Dr. Jain specializes in emergency medicine and anti-aging and regenerative medicine.