Health Data Kalamazoo

Influenza and Influenza-Like Illness in Kalamazoo County and Michigan

Number of Cases of Lab Confirmed Influenza and Influenza-Like Illness by Calendar Week and Flu Season, Kalamazoo County

Data is updated on Tuesday for the previous week. The most recent data is Week 3 (Jan. 15-Jan. 21).

As of 3:00 p.m., January 26, 2023

To hide or isolate calendar years, click on the corresponding color box.

Source: Michigan Disease Surveillance System - number of cases of lab confirmed influenza and Influenza Like Illness reported by schools, licensed childcare, colleges, healthcare providers and long-term care facilities.
Current flu season data is considered provisional and subject to change.

Flu Updates

Weekly U.S. Influenza Surveillance Report Updated 1/13/23

Current U.S. Surveillance Report

  • Seasonal influenza activity continues but is declining in most areas.
  • Of influenza A viruses detected and subtyped during week 1, 72% were influenza A(H3N2) and 28% were influenza A(H1N1).
  • Five influenza-associated pediatric deaths were reported this week, for a total of 79 pediatric flu deaths reported so far this season.
  • CDC estimates that, so far this season, there have been at least 24 million illnesses, 260,000 hospitalizations, and 16,000 deaths from flu.
  • The cumulative hospitalization rate in the FluSurv-NET system was 1.8 times higher than the highest cumulative in-season hospitalization rate observed for week 1 during previous seasons going back to 2010-2011. However, this in-season rate is still lower than end-of-season hospitalization rates for all but 4 pre-COVID-19-pandemic seasons going back to 2010-2011.
  • The number of flu hospital admissions reported in the HHS Protect system decreased compared to week 52.
  • The majority of influenza viruses tested are in the same genetic subclade as and antigenically similar to the influenza viruses included in this season’s influenza vaccine.
  • All viruses collected and evaluated this season have been susceptible to the influenza antivirals oseltamivir, peramivir, zanamivir, and baloxavir.
  • An annual flu vaccine is the best way to protect against flu. Vaccination helps prevent infection and can also prevent serious outcomes in people who get vaccinated but still get sick with flu.
  • CDC continues to recommend that everyone ages 6 months and older get an annual flu vaccine as long as flu activity continues.

Kalamazoo County Influenza Vaccine Update by Age Group

Data through January 14, 2023

Kalamazoo County Residents

88,410 vaccinated

Total Eligible 279,163

Ages 6 mths - 5 yr

4,569 vaccinated

Total Eligible 12,229

Ages 5-12

6,809 vaccinated

Total Eligible 29,562

Ages 13-17

4,044 vaccinated

Total Eligible 29,209

Ages 18-64

44,008 vaccinated

Total Eligible 167,254

Ages 65+

28,980 vaccinated

Total Eligible 40,909

Influenza Vaccination Data Kalamazoo County and Michigan

This dashboard provides data for the number of influenza vaccinations given by age group and influenza season at the state and county levels. To find data for Kalamazoo County, go to the tab labeled COVERAGE BY COUNTY and select Kalamazoo under the county drop down options. To see the vaccination rate for a particular age group, select the age group of interest under the Age Group drop down options.

The tab labeled DOSES BY COUNTY shows the number of influenza vaccine doses administered by vaccine type and provider facility type by county.

Michigan Influenza Dashboard Updated once weekly on Mondays

Information not displaying? Click here to view.

Influenza Vaccination Rates by Census Tract

As of 3:00 p.m., February 01, 2022
Source: Michigan Care Improvement Registry (MCIR) and Michigan Geographic Framework Data.

In addition to looking at county-level influenza immunization rates, looking at data by census tract can help identify disparities in vaccination rates at the neighborhood level. This can help the health department and community partners prioritize areas for education and outreach activities. The maps below show the percentage of people who have received an influenza vaccine in each of the 57 census tracts in Kalamazoo County.

Click on the maps to view a larger version.

All Ages
All Ages
Ages 65+
Ages 65+
Ages 19 and Younger
Ages 19 and Younger
Ages Under 5
Ages Under 5

CDC Influenza Like Illness Activity Level Indicator

Levels of influenza activity are determined by reports to ILINet, this system monitors outpatient visits for Influenza Like Illness (fever and cough or sore throat), not laboratory confirmed influenza. The map reflects the intensity of ILI activity, not the extent of geographic spread of flu within a jurisdiction. Additional information about the ILINet system can be found here.

Special Reports

Other Influenza Links

Kalamazoo County Health and Community Services Flu Page

Provides information about vaccination locations in the community and FAQs for flu vaccine questions.

MI Flu Focus

Provides detailed information about influenza activity within the state of Michigan.

MDHHS Influenza Page

Michigan Department of Health and Human Services Influenza page, provides information about influenza prevention, data, and other flu related resources.

CDC Interactive Flu Data 

An interactive page from the CDC which provides data from laboratory reporting and the US Outpatient Influenza Like Illness Surveillance Network.


The weekly US Influenza Surveillance Report, includes laboratory data, outpatient visits, hospitalizations, and mortality.

WHO (World Health Organization)

Provides updated information about influenza activity worldwide.