Importance of the flu vaccine

St. Louis: 2025 Public Drive Thru Influenza Vaccine Clinics

by SSM Health Cardinal Glennon

Get Your Yearly Flu Vaccination

It’s that time again to get your yearly flu vaccination – an important reminder for both adults and children!

The flu season starts in November and peaks in January or February. It takes about two weeks for the body to build up immunity after receiving the shot, so getting your flu vaccine before the spread starts can help prevent a serious illness.

Who Should Get Vaccinated?

The flu vaccine is recommended for all individuals over six months old and is especially critical for:

  • Patients 65 or older
  • Those with chronic medical conditions
  • Those who are pregnant

"Although vaccines are not 100% effective in preventing illness, they can significantly decrease the risk of adverse reactions or complications from the illness and decrease the risk of hospitalization," notes SSM Health Cardinal Glennon pediatrician Dr. Zacharoula Oikonomopoulou.

View updated CDC 2025-2026 guidelines for flu vaccines.

SSM Health Medical Group St. Louis: 2025 Public Drive Thru Influenza Vaccine Clinics

Every Saturday, 9/27/2025 - 10/25/2025 | 8:00 am - 12:00 pm

Appointments are not required but encouraged. Call 314-955-9600 to make an appointment.

  • South County: 5252 S Lindbergh Blvd Saint Louis, MO 63126
  • North County: 3878 Pershall Road Ferguson, MO 63135
  • Richmond Heights: 1035 Bellevue Ave Saint Louis, MO 63117 (garage off Ethel & Bellevue)
  • St. Charles: 301 Caledonia Parkway O’Fallon, MO 63368

Flu vaccinations are also available during any scheduled appointment. If you do not have a scheduled appointment, you can schedule a vaccine-only appointment using MyChart.


Symptoms of cold vs. flu

Feeling yucky, but confused about your symptoms?

A cold develops slower with milder symptoms including minor cough, runny nose, and a mild- to moderate-grade fever.

Influenza (flu) presents with a sudden onset of a higher fever, body aches, headache, and nasal congestion.

While some symptoms are similar, the flu is much more severe. Be sure to get plenty of rest, stay hydrated, wash your hands frequently, and use pain relievers for body aches and headaches.

See an overview of signs and symptoms below:

Symptom Cold Flu
Symptom onset Gradual Abrupt
Fever Rare Usual
Aches Slight Usual
Chills Uncommon Fairly Common
Fatigue, weakness Sometimes Usual
Sneezing Common Sometimes
Chest discomfort, cough Mild to moderate Common
Stuffy nose Common Sometimes
Sore throat Common Sometimes
Headache  Rare Common

Source: CDC

Not feeling well and need to be seen today? SSM Health has you covered.

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