Trusted protection to help reduce serious illness and support long-term health
COVID19 (coronavirus disease 2019) is caused by a virus called SARSCoV2. It spreads easily from person to person and most often affects the respiratory system, with symptoms that may feel similar to a cold, flu, or pneumonia.
While many people experience mild illness, COVID19 can cause serious health complications for some individuals. Older adults and people with certain underlying medical conditions are at higher risk of severe illness. Some people may also develop ongoing health issues after infection, sometimes called postCOVID conditions or long COVID.
At Marshfield Clinic, our Family Medicine, Internal Medicine, and Pediatric providers offer COVID19 vaccination as part of routine preventive care. We help patients understand current recommendations and make informed decisions based on age, health status, and risk factors.
Schedule Today
Call: (866) 250-2510; Monday-Friday 8 a.m. - 5 p.m.
View immunization history
You can view your immunization history by logging into My Marshfield Clinic.
Symptoms
COVID19 symptoms can range from mild to severe and may include:
- Fever or chills
- Cough
- Shortness of breath
- Fatigue
- Muscle or body aches
- Sore throat
- Nasal congestion or runny nose
Symptoms and recovery can vary widely from person to person.
Possible complications
COVID19 can affect more than just the lungs. In some cases, complications may involve:
- Worsening of heart, lung, or kidney conditions
- Hospitalization
- Ongoing symptoms such as fatigue, shortness of breath, or difficulty concentrating (postCOVID conditions)
Vaccination significantly lowers the risk of severe illness and complications.
Who's most at risk?
COVID19 can affect anyone, but the risk of severe illness is higher for:
- Older adults
- People with chronic medical conditions
- Individuals with weakened immune systems
Staying up to date with vaccination helps protect both individuals and the broader community.
Vaccine recommendations
COVID19 vaccines help the immune system recognize and fight the virus that causes COVID19. All currently approved or authorized vaccines in the U.S. are safe and effective and reduce the risk of severe illness.
Vaccination recommendations are updated regularly. For the most current guidance, visit the Centers for Disease Control and Prevention (CDC). The CDC does not recommend one vaccine product over another.
Your provider can help you:
- Review your vaccination history
- Understand whether you are due for an updated dose
- Decide when vaccination is appropriate for you or your child
How Marshfield Clinic supports you
Our care teams provide clear, supportive guidance on COVID19 vaccination, including:
- Reviewing your health history and risk factors
- Answering questions about vaccines and booster recommendations
- Helping coordinate vaccination at the right time for you
We’re here to support informed choices and ongoing preventive care.
Frequently asked questions
Are COVID19 vaccines safe?
Yes. COVID19 vaccines have undergone extensive study and continue to be monitored for safety and effectiveness.
Can children receive COVID19 vaccines?
Yes. COVID19 vaccines are recommended for eligible children. Your child’s provider can review age-specific guidance.
Do I still need a vaccine if I already had COVID19?
Vaccination can provide additional protection, even if you’ve had COVID19 before. Your provider can help you decide what’s best based on your history.
Trusted resources
Centers for Disease Control and Prevention: COVID19 Vaccines
Vaccine Safety: https://www.cdc.gov/vaccine-safety/
Reviewed by Marshfield Clinic Health System medical experts