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COVID Vaccine Information

COVID Vaccine News and Information (updated 10/16/23)

St. Luke’s will begin administering the 2023-2024 COVID-19 vaccine on Tuesday, Oct. 24 to adults ages 19 years and older. Scheduling will open Oct. 20 in MyChart.

Per the Centers for Disease Control and Prevention, the vaccine is expected to be covered by most insurance plans, including Medicare and Medicaid. Uninsured adult patients can find providers offering free immunizations at Vaccines.gov.

We are not yet administering the updated COVID vaccine to patients ages 6 months through 18 years old, as we are continuing to update our systems. We will begin scheduling and administration for this group as soon as possible.

The updated COVID-19 vaccine formulated for better protection against newer circulating COVID-19 strains was approved in September.

COVID-19 Vaccine Recommended for Pregnant Women

COVID-19 Vaccine Recommended for Pregnant Women

Protect Yourself and Your Baby

Pregnant women with COVID-19 can have severe illness and severe outcomes, including ICU admission, mechanical ventilation, and death.


That's why St. Luke’s OB/GYN providers recommend the COVID-19 vaccine for people who are pregnant, breastfeeding or trying to get pregnant. More than 139,000 pregnant women have enrolled in the V-Safe Pregnancy Registry. Data shows there is no risk of miscarriage associated with the vaccines.


COVID-19 vaccines do not cause infection; they do prevent severe illness from COVID-19, which is dangerous for a pregnant woman and her fetus. Maternal infection with the virus is associated with an increased risk of preterm delivery and stillbirth. Vaccinated mothers who are breastfeeding transmit antibodies that may help protect their newborns.

FAQs: Vaccine Basics

Click each question below for its answer:

How effective are the COVID-19 vaccines?

Pfizer has reported that its vaccine is 95% effective in preventing COVID-19 infection, once seven days have passed since the second vaccine dose (booster shot). The Moderna vaccine is reporting a 94.5% effectiveness rate.

The COVID vaccine will help your body generate antibodies to help protect you from the virus without getting sick. Vaccines can produce longer-lasting protection than if you had the disease. Research shows antibodies in recovering adults last up to four months. The CDC says more data is needed to know how long immunity produced by the vaccination will last.

How effective and safe is Pfizer for children ages 12 through 15?

In a Pfizer trial study, the vaccine prevented the disease in 100 percent of the 1,131 adolescents who received it. Pfizer said the vaccine was well tolerated and side effects were consistent with those reported by people 16-25 years old. Our pediatricians and physicians say it is better to get the vaccine than to risk getting the disease, the symptoms and the possible long-term effects.

What is in the COVID-19 vaccines?

Please review the fact sheets for each vaccine, as developed by the manufacturers: 

Learn more about COVID-19.

Since the COVID-19 vaccine was rolled out fast, how do we know it is safe?

These are not new technologies. The vaccines are actually set up to give us immunity that is better than natural infection. We know the side effects of the natural infection. When we compare the risks to those at the frontlines that are being exposed to the virus and those in our community who are at high-risk for severe disease and death, those risks greatly overshadow the unknown risks of the vaccine.

Is the COVID-19 vaccine a live virus?

No, it is made from a portion of the virus’ molecular material (RNA). For more information on the science behind the vaccine, please visit Facts about COVID-19 Vaccines.

Does the vaccine prevent you from getting COVID-19 or just reduce symptoms?
Both. More than 90% of the people in the phase 3 trials did not get COVID-19. Of those who did get it, only one person in the Pfizer study has a severe case, the rest of the participants in Pfizer had minor symptoms.
Can someone who is vaccinated still get COVID-19?

Yes, because the vaccine is 95% effective, not 100% effective. Those exposed to the virus later, after the booster vaccine, tended to have mild symptoms if they became ill at all.

What percentage of the community needs to be vaccinated to reach herd immunity? Can it happen naturally?
According to the CDC, experts do not know what percentage of people would need to get vaccinated to achieve herd immunity to COVID-19.

The American Lung Association’s blog says, “In most cases, herd immunity is not achieved without an effective vaccine. For COVID-19, the percentage of the population that needs to be infected to achieve herd immunity is estimated to be between 70% and 90%, and this is assuming lasting immunity is possible.”

Herd immunity could happen naturally but would take years. Also, we know acquiring immunity through natural disease is risky to that person and comes with a high cost of hospitalizations, long-term health problems and even more deaths.
How do I decide if getting vaccinated is right for me?
Weigh the risk of contracting or spreading this potentially life-threatening disease to those who are vulnerable against the risks, side effects, safety and effectiveness of the vaccines offered.

Older age and underlying medical conditions including obesity, a compromised immune system, hypertension, COPD, diabetes, and heart disease increase the risk of severe illness from the virus and should be considered as well. You may wish to discuss with your primary care provider.
How can I learn more about how the COVID-19 vaccine has been developed, tested and approved?
Watch this brief video from the United States Department of Health and Human Services.
Where can I get more information about COVID-19 vaccines?

Idaho Resources

National Resources

FAQs: Getting the Vaccine

Click each question below for its answer:

When will COVID-19 vaccine be available?

The COVID-19 vaccines have been available since 2020 and continue to be updated to better fight currently circulating variants. St. Luke’s administers the Pfizer vaccine. Stay up to date with COVID-19 vaccines.

How do I schedule in myChart or set up a myChart account?
If you don’t have a myChart account, you can create one online or by calling 208-381-9000. If you are unable to use technology or need interpretation services, please call 208-381-9500. You may also set up online myChart proxy access for family members or dependents and fill out a questionnaire for them.

If you are an adult 18+, you can schedule by following these steps:

  1. Log into St. Luke’s myChart. (If you don’t have an account, you can create one online or by calling 208-381-9000.)
  2. Click on Schedule COVID Vaccine Appointment.
  3. Answer a few quick questions and then schedule your vaccine appointment.
You can also call 208-381-9500 to schedule an appointment. 
How can people ages 16-17 get the vaccine?
For minors 16-17 years old:

  • Minors cannot consent for a COVID vaccine. They must be accompanied by a parent or legal guardian to provide consent at the time of the appointment. Written or verbal consent will need to be provided by a parent or legal guardian, if not present at the time of the appointment.  
  • Teens 16-17 years old can only receive the Pfizer vaccine, which is available at St. Luke’s sites in Boise, Hailey, McCall, Meridian, Mountain Home, Nampa and Twin Falls.
  • Minors cannot schedule their own appointments in myChart. Parents or legal guardians with teen proxy access can schedule for the minor. To get teen proxy access, the teen will need to grant teen proxy access to their parent or legal guardian through their own MyChart account.
  • Parents can schedule without proxy access by calling 208-381-9500.
  • Minors can schedule their own vaccine appointment by calling 208-381-9500, however, they must be accompanied by a parent or legal guardian to provide consent at the time of the appointment, or provide written or verbal consent of a parent or legal guardian, if not present at the time of the appointment. 

How to Schedule

  1. Log into St. Luke’s myChart. (If a minor doesn’t have an account, they will need to get an activation code online or by calling 208-381-9000.)
  2. Click on Schedule COVID Vaccine Appointment.
  3. Answer a few quick questions and then schedule your vaccine appointment.
  4. Or call 208-381-9500.
How can children ages 12-15 get vaccinated?
  • Minors cannot consent for a COVID vaccine. A parent or legal guardian should accompany minors to provide consent at the time of the appointment. Written or verbal consent by phone may be accepted if a parent or legal guardian is not present.  
  • Children 12-15 years old can only receive the Pfizer vaccine, which is available at St. Luke’s sites in Boise, Hailey, McCall, Meridian, Mountain Home, Nampa and Twin Falls.
  • Minors cannot schedule their own appointments in myChart. Parents or legal guardians with teen proxy access can schedule for the minor. To get teen proxy access, the teen will need to grant teen proxy access to their parent or legal guardian through their own MyChart account.
  • Parents and children can walk in or a parent can schedule by calling 208-381-9500. Note: we are not able to accommodate walk-ins in Hailey.
  • Patients should wear loose-fitting clothing to allow access to the upper arm.
  • Parents should be aware that we will not give the vaccine to children who don’t want it.
How can children ages 5-11 get vaccinated?
  • Minors cannot consent for a COVID vaccine. A parent or legal guardian should accompany minors to provide consent at the time of the appointment. Written or verbal consent by phone may be accepted if a parent or legal guardian is not present.  
  • Children 5-11 years old can only receive the Pfizer vaccine at some St. Luke’s sites. Find a list of available sites and appointments at the time of scheduling.
  • Minors cannot schedule their own appointments in MyChart. Parents or legal guardians with proxy access can schedule for the minor. 
  • At this time, we are not able to accommodate walk-in appointments for this age group. 
  • Patients should wear loose-fitting clothing to allow access to the upper arm.
  • Parents should be aware that we will not give the vaccine to children who don’t want it.
Can I choose which vaccine I receive?
St. Luke’s only offers Pfizer COVID-19 vaccine as of May 23, 2023. As vaccine changes have accelerated and administration has become more complex, we believe providing one vaccine brand will increase safety for our patients. Moderna remains available at community pharmacies and health care providers.
Can I bring someone with me to my vaccine appointment?

Please review our visitor policy.

What are the side effects for the vaccines?

Pfizer and Moderna: The most common side effect is injection site pain. Other side effects of the Pfizer and Moderna vaccines include fatigue, headache, muscle pain and chills, and generally last two days before subsiding. These side effects indicate that the vaccine is doing its job, mimicking an infection in the body without causing a COVID-19 infection. Severe adverse reactions such as allergic reactions and Bell’s Palsy are much less common, but if they occur, need to be reported to your health care provider. None of these side effects are contagious.

It is important to note that reactions after the vaccine and the actual COVID-19 infection are significantly different. Vaccine reactions may involve some mild symptoms occurring in the first couple of days, coupled with the pain at the injection site, redness and swelling (from the vaccine), as noted above. By contrast, the COVID-19 infection reaction has a respiratory component, cough and nasal congestion, loss of taste or smell, shortness of breath, much more fever, and also a longer period of muscle pain, fatigue and headache.

Infrequently, people who have received dermal fillers may develop swelling at or near the filler injection site, usually face or lips, after receiving a dose of an mRNA COVID-19 vaccine (Pfizer or Moderna). It appears to be temporary and can resolve with medical treatment, including corticosteroid therapy. People who have received dermal fillers can be vaccinated without additional precautions but should contact their health care provider if they develop swelling afterward.

Should I get the vaccine if I had a prior COVID positive test result?
The recommendation is to go ahead and get the vaccine. The Pfizer data included individuals that had recently had a positive test and also got the vaccine. There's a lot of theoretical and other evidence that suggests that the immunity from the vaccine may actually be a longer, more protective immunity than the variable immunity you can get after a natural infection. However, we do not want people who are actively sick getting the vaccine. But any recovered individual, whether it was a documented COVID or suspected COVID, should get the vaccine. If there are any questions, discuss them with a health care provider.
Can pregnant or lactating women get the vaccine?
St. Luke’s would follow the American College of Obstetricians and Gynecologists recommendation, which recommends that it may be helpful for the pregnant patient to have a conversation with their OB or their family medical doctor. We will give a pregnant or lactating woman the vaccine if she chooses to get it, whether or not she has spoken with her OB or provider.
Do I have to pay for the vaccination?
Per the Centers for Disease Control and Prevention, the vaccine is expected to be covered by most insurance plans, including Medicare and Medicaid. Uninsured adult patients can find providers offering free immunizations at Vaccines.gov.
What if I have lost my CDC vaccine card or forget to bring it to my vaccination appointment?
If you have lost or forgotten your CDC vaccine card, you can receive another one at your appointment or by going to a St. Luke's clinic that is currently providing COVID-19 vaccines. You also may access your medical records online through myChart for proof of vaccine.
Can I get a COVID-19 vaccination and other vaccines at the same time?

Yes, the CDC has updated their guidance to state that health workers may administer another needed vaccine at the same time as the COVID vaccine. This applies to patients of any age.

Should I postpone a COVID-19 vaccination if I have an upcoming procedure?
If you are getting an updated COVID-19 vaccination, you should not plan on a procedure up to three days after you receive the shot as there is a chance you will experience side effects and not feel well.
Does COVID-19 vaccination affect TB testing?
If baseline TB screening is required, it can be done before the person receives the vaccine. The IGRA can be drawn any time prior to the COVID Vaccine or the TST can be placed and read (up to 72 hours after placement) before receiving the COVID Vaccine.

If the person has recently received the COVID-19 vaccine, the current CDC recommendations state the need to defer TST (TB skin test) or IGRA (TB blood test) until four weeks after completion of the second dose of COVID-19 vaccine. If the person is in that COVID-19 vaccine window, we recommend a healthcare screening to ensure that an individual does not have any symptoms of active (contagious) tuberculosis disease. This screening is provided by the Occupational Health clinics.

This health care screening does not rule out latent tuberculosis, which is when the disease is only in a dormant state and cannot be spread to others.  However, with this preliminary clearance, testing for latent TB can be deferred until the four-week post-COVID-19 booster waiting period has ended.  Once that person is past their COVID-19 vaccine window, they should proceed with the IGRA or TST, screening for latent TB.

FAQs: After Vaccination

Click each question below for its answer:

What should I expect after getting the COVID vaccine?

The CDC has published information on What to Expect after Getting a COVID-19 Vaccine and posts updates as more information becomes available.

How long will the vaccine be effective?
According to the CDC, immune protection from both vaccines and previous infections can decline over time and as new variants emerge. It is important to stay up to date with recommended COVID-19 vaccines, especially for people at higher risk of severe disease, such as older adults and people with medical conditions.
What should I do if I have a reaction to the vaccine?

When you receive a vaccination in one of our clinics, you will have the option to be monitored for about 15 minutes and medical staff will use safety precautions and respond immediately if you have an initial reaction. If you have a delayed reaction, please contact your primary care provider or call 911.

Is it safe to visit at-risk loved ones after I've been vaccinated?

It is most safe to visit those who are also vaccinated. The COVID-19 vaccines are not 100% effective and some, such as those who are unable to be vaccinated (e.g., young children) and some immunocompromised people who may not have developed robust antibodies to the vaccine, may be less protected and/or not protected.

Can I donate blood and/or convalescent plasma after I receive the vaccine?

Getting the COVID-19 vaccine will affect when or if you are eligible to donate blood. View Red Cross guidelines