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.
| Information for the Public |
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| Information for Health Facilities and Health Professionals |
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Influenza is reportable to the County of San Diego Epidemiology Program in the following circumstances:
Required Reporting
- Influenza-related deaths <65 years of age
- Influenza, novel strains (human)
- Influenza outbreaks (institutional, congregate, or community settings)
Requested Reporting
- All laboratory positive influenza detections (including rapid test results)
- Influenza-related cases admitted to ICU (any age)
- Influenza-related deaths 65 years of age and older
Complete the Confidential Morbidity Report form (type or write "influenza" as the Disease Being Reported, including type A or B, if known) and fax to the County of San Diego Epidemiology Program at 858-715-6458.
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| Additional Resources |
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For more information, contact the Epidemiology Program 619-692-8499 or send us an e-mail.
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