After receiving vaccinations, children may exhibit symptoms like fever, irritability, sleepiness, redness, or lumps at the injection site. Discomfort can be alleviated with acetaminophen.
If you notice the following, reach out to us during normal office hours:
If the fever persists for more than 48 hours post-vaccination or if the redness at the injection site worsens.
If you observe these signs, contact us urgently:
If your baby is refusing to feed, has been crying inconsolably for over 2 hours despite acetaminophen and warm compresses, or if something else is causing concern.
FEVER – Ages 2-6 months
At the age of 2 months, your baby’s immune system is more robust. If they have a fever but are still alert and feeding, you can give them acetaminophen.
Call us during regular office hours if:

If your baby has a persistent fever exceeding 100.5 for more than 24 hours or is eating significantly less but urinating regularly.
Call us urgently if:
If your baby is breathing rapidly, remains lethargic despite the fever reducing, or if any other concerns arise.
FEVER – Age 6 months and Up

Fever is the body’s natural response to infections and aids in fighting off illnesses without causing harm. Managing fever is crucial, but there is no specific dangerous threshold for fever.
Call us during regular office hours if:
If the fever persists for over 48 hours without any other symptoms, or if the fever continues alongside additional symptoms.
Call us urgently if:
If your child shows signs of rapid or labored breathing, dehydration, or lethargy even after taking fever medication.
Side effects can occur with any vaccine, but most are mild and temporary. Vaccines undergo safety monitoring, and decisions regarding vaccination involve weighing risks and benefits.
Smallpox vaccine side effects (vaccinia)
Before receiving the ACAM2000 vaccination (10/1/09), it is important to review this new guide, which replaces the Smallpox VIS document. It is crucial to be aware of the potential side effects and risks associated with the smallpox vaccine. Common reactions to the smallpox vaccine may include soreness, redness, swelling, fever, and headache at the injection site. In some cases, individuals may experience more severe symptoms such as rash, fatigue, or muscle aches. It is important to monitor for any unusual or severe reactions and inform your healthcare provider promptly.
Typhoid vaccine side effects
Potential risks associated with the typhoid vaccine:
- Common reactions to the inactivated typhoid vaccine include pain, redness, swelling, fever, and headache.
- The live typhoid vaccine may cause fever, headache, abdominal pain, diarrhea, and nausea.
After receiving the typhoid vaccination, there is a possibility of experiencing fainting, dizziness, or changes in vision or hearing. If any of these symptoms occur, it is important to inform your healthcare provider. As with any medication, there is a small risk of severe allergic reactions or other serious complications. It is crucial to follow post-vaccination guidelines and seek medical attention if needed.
Information sourced from the Typhoid Vaccine VIS.