Reporting Requirements
Influenza, Influenza-Associated Mortality, and Novel Influenza A
Reporting Requirements
Laboratory-positive influenza is a Category 4 reportable disease and shall be reported directly to DHSS weekly. Influenza-associated mortality, influenza-associated public and/or private school closures, novel influenza A virus infections, and influenza-associated outbreaks are Category 2 reportable diseases and shall be reported to the local health authority or to DHSS within one (1) calendar day of first knowledge or suspicion by telephone, facsimile or other rapid communication. Contact the District Communicable Disease Coordinator, the District Senior Epidemiology Specialist, or DHSS – BCDCP, phone (573) 751-6113, fax (573) 526-0235, or for after hours notification contact the ERC at (800) 392-0272 (24/7).
As Nationally Notifiable Conditions, confirmed cases of influenza-associated pediatric mortality and probable and confirmed cases of novel influenza A virus infections are a STANDARD report to CDC. DHSS will submit these reports to CDC by electronic case notification (WebSurv) within the next reporting cycle.
1. Laboratory-positive influenza cases are reported in aggregate through WebSurv by local public health agencies (LPHAs). Results by laboratories other than the MSPHL are part of the aggregate report. All laboratory-positive influenza shall be reported on a weekly basis in aggregate form to the local health authority year round. NOTE: Influenza A (H1N1)pdm09 virus is considered the circulating seasonal influenza A virus and should be entered in the Aggregate Reporting tab in WebSurv as Influenza A. Confirmed influenza cases identified by the MSPHL will be entered into WebSurv by name with the influenza A virus subtype or influenza B virus lineage identified, if known. The cases will be entered with a “confirmed” status and a “closed” resolution. These cases are available for review through the notification function in WebSurv.
2. For all cases of influenza-associated mortality, complete a “Disease Case Report” (CD-1)and an “Influenza-Associated Mortality Case Report”. Isolates or specimens positive for influenza from these patients should be sent to the MSPHL for further testing. Entry of the completed Disease Case Report (CD-1) into WebSurv negates the need for the form to be forwarded to the District Health Office. Forward the supplemental form to the District Communicable Disease Coordinator or the District Senior EpidemiologySpecialist.
3. For all confirmed and probable cases of novel influenza A virus infection, complete a“Disease Case Report” (CD-1) and a “Human Infection with Novel Influenza A Virus CaseReport Form”. Any suspect novel influenza respiratory specimens or any unsubtypable influenza A viruses should be sent to the MSPHL for further testing. Consultation withMSPHL is required before sending these specimens. Entry of the completed Disease CaseReport (CD-1) into WebSurv negates the need for the form to be forwarded to the DistrictHealth Office. Forward the supplemental form to the District Communicable Disease Coordinator or the District Senior EpidemiologySpecialist.
4. For all outbreaks or “suspected” outbreaks, complete the “Missouri Outbreak SurveillanceForm” (CD-51). For school or child care outbreaks/closures, complete the “InfluenzaOutbreak/School Closure Information Form”. For outbreaks in health care facilities, nursing homes, residential care facilities or rehabilitation facilities, complete the “Institutional Influenza Investigation Report”. Forward the completed forms to the District Communicable Disease Coordinator or the District Senior Epidemiology Specialist.
5. An outbreak summary should be submitted within 90 days from the conclusion of an outbreak to the District Communicable Disease Coordinator or the District SeniorEpidemiology Specialist.