Influenza is an airborne viral respiratory condition characterized by symptoms of fever, cough, sore throat, and myalgia. Illness can be mild to severe. Persons with a compromised immune system or a chronic respiratory condition may be at increased risk for complications such as respiratory distress, pneumonia, or death.
The best way to prevent influenza is by getting an influenza vaccination each year. Seasonal influenza vaccines include the three strains (2 influenza A strains and 1 influenza B strain) considered most likely to circulate that season.
The links below can help answer specific questions regarding influenza disease, vaccine, laboratory testing, case reporting, and outbreak prevention and control.
For more information, contact the Epidemiology Program 619-692-8499 or send us an e-mail.