Western WI Public Health Readiness Consortia

Respiratory Viruses

Respiratory viruses cause illnesses that affect the nose, throat, and breathing passages. These viruses often result in common cold and influenza-like symptoms. Common respiratory viruses include:

Influenza
Parainfluenza
Adenovirus
Respiratory Syncytial Virus (RSV)

Rhinovirus/Enterovirus
Coronavirus
Human Metapneumovirus
COVID-19

The following surveillance tools can help public health monitor the occurrence and trends of common respiratory viruses during the respiratory illness season.

DHS: Weekly Respiratory Virus Surveillance Report

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CDC: National Respiratory & Enteric Virus Surveillance System (NREVSS)

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CDC: Respiratory Illness Data Channel

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DHS: Respiratory Illness Data Snapshot

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CDC: COVID-19 Wastewater Surveillance

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DHS: COVID-19 Wastewater Data

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Recent Updates

Respiratory Illness Snapshot

Nationally, as of December 27th, COVID-19 activity is increasing in most areas of the nation. Seasonal influenza activity continues to increase across the country. RSV activity is high and continues to increase in most areas of the U.S., particularly in young children.
In Wisconsin, as of December 21st, COVID-19 levels are moderate and increasing based on emergency department, laboratory testing, and wastewater data. Influenza and RSV are circulating at low levels, and activity continues to increase.

Other News

December 11th, Secretary Becerra signed the 12th amendment to the declaration under the PREP Act for COVID-19 Medical Countermeasures to extend the durations of the Declaration to December 31, 2029, and to republish the Declaration in full.
December 12th, the FDA reported in a briefing document that a pediatric RSV vaccine trial is on hold due to concersn about potential safety findings.
December 13th, JAMA Network Open published a study estimating RSV vaccine effectivenss of 90% in adults aged 60+ for both RSV-related hospitalization and ED visits.
As of December 23rd, Wisconsin has 2,365 confirmed cases of pertussis. 70 counties have had at least one case since January 1, 2024. 94 infants have been identified with pertussis and 12 have been hospitalized.

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