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• Influenza, RSV, and COVID-19 activity is low. Flu is above the 5-season average while RSV and
COVID-19 are below the typical average.
• To receive weekly updates, subscribe to the Respiratory Virus Summary at azhealth.gov/email.
• The cases included in this report represent a small proportion of the true number of cases of
respiratory diseases. Many people do not visit the doctor when ill and doctors should not be
expected to run tests on all patients exhibiting respiratory symptom
Respiratory Season Synopsis
Influenza activity is increasing and is above the 5-season average. RSV and COVID-19 activity is
low and remains below the typical average.
• To receive weekly updates, subscribe to the Respiratory Virus Summary at azhealth.gov/email.
• The cases included in this report represent a small proportion of the true number of cases of
respiratory diseases. Many people do not visit the doctor when ill and doctors should not be
expected to run tests on all patients exhibiting respiratory symptoms.
Weekly Summary 12/15 - 12/21
• Influenza activity remains high and continues to rise above the seasonal average. RSV activity is
also increasing but remains below the typical season average, while COVID-19 activity is stable
and below the seasonal average.
Pima County Health Department remains dedicated to tracking cases of influenza (flu), respiratory syncytial virus (RSV) and COVID-19 in available data sources to help the public and health officials make decisions about how to respond to and prevent the spread of disease.
Data updated on 2/19/2025
Flu season runs from September 29, 2024 (Week 40) to September 27, 2025(Week 39)Flu Data for 2024-25 Season
Flu Data for 2024-25 Season Updated with data for MMWR week7: February 09 - February 15
TOTAL CASES THIS SEASON
5208
TOTAL CASES THIS WEEK
200
COVID-19 Data for 2024-2025 Updated with data for MMWR week7: February 09 - February 15
TOTAL CASES THIS SEASON
6741
TOTAL CASES THIS WEEK
199
RSV Data for 2024-25 Season Updated with data for MMWR week7: February 09 - February 15
TOTAL CASES THIS SEASON
856
TOTAL CASES THIS WEEK
106
