Influenza Surveillance

Northern Nevada Public Health Influenza Surveillance

 

Northern Nevada Public Health (NNPH) influenza surveillance is conducted year-round. Goals are to characterize the prevailing strains of influenza in the community, measure the impact of the disease in the community, and obtain and disseminate information regarding influenza activity to health care providers, the public, and those concerned with influenza control measures.

Influenza surveillance consists of four major components:

• Weekly reports of influenza-like illness (ILI) to the Communicable Disease Program by selected sentinel healthcare providers. The case definition for ILI is a fever >100°F AND cough and/or sore throat. A patient with fever, chills, body aches, and nasal congestion but no cough or sore throat is not considered to meet the definition of ILI. Sentinel providers include hospital emergency rooms, urgent cares, and a student health center.
• The collection of a limited number of specimens by sentinel health care providers from persons with ILI. The purpose of the laboratory confirmation is to verify which type of influenza virus is circulating in the community.
• Monitoring of influenza mortality through death certificates.
• Routine reporting of confirmed hospitalized cases of influenza by all healthcare providers and laboratories. Pediatric influenza-associated deaths are a reportable condition in Nevada. Suspected or confirmed outbreaks of influenza are also reportable. If you suspect an influenza outbreak, report it using the NNPH secure online Outbreak Reporting form.

Starting in October 2024, influenza, RSV, and COVID-19 data are reported together in a single weekly viral respiratory report. These reports and further information can be found at NNPH’s Respiratory Virus Surveillance page. Influenza reports from prior seasons are maintained on this webpage.

To see weekly statistics for communicable diseases reported by week in Washoe county, including Influenza hospitalizations by flu type, visit Communicable Disease (CD) Weekly Portal.

 

Washoe County Influenza Report, Past Seasons

• 2023-2024 Season Summary
• 2018-2022 Influenza Hospitalization and Mortality Report
• 2022-2023 ILL Season Summary
• 2021-2022 ILI Season Summary
• 2020-2021 ILI Season Summary
• 2019-2020 ILI Season Summary
• Weekly Influenza Reports 2018/2019
• Weekly Influenza Reports 2017/2018
• Overview of Hospitalization and Death Data for 2017/2018
• 2017-2018 ILI Season Summary 

 

Nevada Influenza & Respiratory Reports, Current Season

Monitoring Respiratory Illness in Nevada- This dashboard is run by the Department of Health and Human Services Nevada Division of Public and Behavioral Health (DPBH).

 

U.S. Weekly Influenza and Respiratory Reports & Statistics

FluView- Weekly U.S. influenza surveillance report.

FluView Interactive- Online application that allows for more in-depth exploration of national influenza surveillance data.

Respiratory Illness – Statistics and information associated with COVID-19, influenza, and RSV.

National Respiratory and Enteric Virus Surveillance System (NREVSS)

 

Influenza ("Flu") Information

For general information on flu, specific information for healthcare providers and other groups (e.g., childcare, parents, businesses and employees), prevention recommendations, and vaccination opportunities and information see NNPH’s Clinical and Community Health Services Flu Site orThe Centers for Disease Control and Prevention’s Influenza (Flu) site.