COVID-19 Vaccine Information

Total Vaccine Doses Administered by CCHD

Updated: 01/10/2022
Vaccine 1st Dose 2nd Dose 3rd Dose Booster Total
Moderna
2,248
2,234
152
1,280
5,914
Pfizer
8,674
8,335
177
2,352
19,538
Pediatric Pfizer
194
157
0
0
351
Total
11,116
10,726
329
3,632
25,803

Harrisonville Clinic

The Cass County Health Department offers COVID-19 vaccinations from 8:30a.m.–4p.m. Monday-Friday at the new clinic location at  2061 N Commercial St, in Harrisonville (formerly Hibbett Sports).  Call 816-380-8425 to schedule an appointment.

  • Appointment preferred, but walk-ins are welcome
  • Vaccines available:  Pediatric Pfizer (ages 5-11), Pfizer (12 and older), and Moderna (18 and older)

Moderna and Pfizer Boosters

The Cass County Health Department is now offering booster shots for the Pfizer and Moderna Vaccine. 

All Missourians 18 and older who received the Pfizer and Moderna vaccine can receive a booster shot at least 6 months after their 2nd dose based on CDC guidance/

The Cass County Health Department does not currently administer Janssen/Johnson & Johnson vaccines. 

Additional Information:

  • Booster doses for Moderna patients are  ½ of the original dose (.25mL)
  • Doses 1 and 2 are given at least 28 days apart 
  • Doses 2 and 3 are given at least 28 days apart for 3rd doses
  • Booster doses are given 6 months after a 2nd dose

Pfizer Vaccinations For Ages 5 - 11 

The Cass County Health Department is now offering Pfizer COVID-19 vaccinations for children 5-11. 

Children may receive a Pfizer COVID-19 vaccination based on the following:

The list of medical conditions categorized as high-risk by the CDC is available here

Mixing COVID-19 Vaccines

If the same vaccine that a patient received previously is not available, a mixed series of mRNA COVID-19 vaccine (Pfizer or Moderna) may be administered 

  • Every effort shall be made to ensure completion of the vaccine series with the same product

  • In situations where the vaccine given for the 1st dose cannot be determined or is no longer available, any available mRNA COVID-19 vaccine may be administered at a minimum interval of 28 days between doses

  • It is preferable to delay the 2nd dose to receive the same product than to receive a mixed series using a different product

  • If 2 doses of different mRNA COVID-19 vaccine products are administered, no additional doses of either product are recommended

    • Such patients are considered fully vaccinated against COVID-19 2 weeks after receipt of the second dose of an mRNA vaccine

3rd Dose for Immunocompromised Individuals

Following recent announcements from the US Food and Drug Administration and the Centers for Disease Control and Prevention, certain immunocompromised individuals can begin receiving third doses of COVID-19 vaccine in Missouri.

A third dose of the PfizerNBioTech or Moderna vaccines may be administered to moderately to severely immunocompromised people due to a medical condition or combination of immunosuppressive medication or treatments including but not limited to the following:

  • Immunocompromised due to solid organ transplant and taking immune-suppressing medications
  • Immunocompromised due to active treatment for solid tumor and hematologic malignancies
  • Immune compromised due to Receipt of CAR-T cell or hematopoietic stem cell transplant (within 2 years of transplantation or taking immunosuppression therapy)
  • Moderate to severe primary immunodeficiency (eg., DiGeorge, Wiskott-Aldrich Syndromes)
  • Immunocompromised due to Advanced or untreated HIV infection
  • Immunocompromised due to “Active treatment with high-dose corticosteroids or other drugs that may suppress immune response: high dose corticosteroids (ie.,≥ 20 mg prednisone or equivalent per day), alkylating agents, antimetabolites, transplant-related immunosuppressive drugs, cancer chemotherapeutic agents classified as severely immunosuppressive, tumor-necrosis (TNF) blocker or other biologic agents that are immunosuppressive or immunomodulatory” 

This does not apply to those who received the Janssen/Johnson & Johnson vaccine.


There must be at least 28 days between a 2nd and 3rd vaccine dose.  Please bring your COVID-19 vaccination card with you to confirm your vaccination dates.

Homebound Vaccinations

The Cass County Health Department can provide in-home COVID-19 vaccination by appointment to homebound Cass County residents.  Homebound persons include those that need the help of another person or medical equipment such as crutches, a walker, or a wheelchair to leave their home, or their medical provider believes that their health or illness could get worse if they leave their home, and they typically do not leave their home.

This service is only provided to those who need it and would not otherwise have access to vaccination.

Please call 816-380-8425 to schedule

On-Site Vaccination Clinics

In an effort to better serve our citizens, the Cass County Health Department is offering on-site COVID-19 vaccination clinics to all employers, businesses, and organizations located within Cass County.  

If you are interested in hosting an on-site clinic, please fill out and submit the application found here.

- Must have a minimum of 10 participants in order to host a vaccination clinic. 

Upcoming Events - click the links below to register

These vaccine clinics are open to anyone 12 or older for the Pfizer vaccine, 18 or older for Moderna.

Walk-ins are welcome but appointments are preferred. Appointment times are first-come, first-served.
Please Pre-register by clicking the "pre-register here" or call 816-380-8425 to schedule.