VEC Vaccine Notes

Vaccine Education Center at Children’s Hospital of Philadelphia

Listen to “VEC Vaccine Notes,” a video and podcast series presented by the Vaccine Education Center at Children's Hospital of Philadelphia. Each episode offers vaccine information in a convenient format, so families have the answers they need to make informed decisions, including details and context that addresses what they may have heard in the news or in conversation with others. This podcast is for general informational and educational purposes only and is not to be considered as professional medical advice for your personal health or for your family's personal health. You should not use it to replace any relationship with a physician or other qualified healthcare professional. For medical concerns, including decisions about vaccinations, medications and other treatments, you should always consult your physician or, in serious cases, seek immediate assistance from emergency personnel. Clinicians must rely on their own informed clinical judgment in making recommendations to their patients. ©2026 The Children’s Hospital of Philadelphia.

  1. -4 ч

    Adjuvants: Aluminum & Vaccines - VEC Vaccine Notes | Vaccine Education Center at Children’s Hospital of Philadelphia

    What is aluminum, and why is it used in some vaccines? Find out in this episode of VEC Vaccine Notes. Charlotte Moser, Co-Director of the Vaccine Education Center, explains how aluminum adjuvants boost immune responses, where aluminum exists in our environment, and how quantities from vaccines compare to daily dietary exposure. This episode also covers how the body processes aluminum, why exposure has decreased over time due to combination vaccines, and what scientific evidence reveals about the safety of aluminum in vaccines. Check out the video version on YouTube. Listen to the episode to find out: Why we can’t avoid exposure to aluminum How much aluminum infants are estimated to consume in the first 6 months of life Why even though less than 1% of dietary aluminum reaches our bloodstream, what we eat still accounts for the majority of aluminum in our bodies How aluminum is processed and where it is stored in our bodies Which vaccines contain aluminum (and why live viral vaccines do not have aluminum) Two reasons aluminum exposure from infant vaccines has decreased over time When aluminum does cause health concerns About different studies evaluating the safety of aluminum in vaccines To learn more about aluminum, please visit https://bit.ly/vec-aluminum. To learn more about vaccine ingredients, please visit https://bit.ly/vec-vax-ingredients. Questions? Submit the VEC Vaccine Notes form, https://bit.ly/contact-vec-vaccine-notes. For other vaccines, diseases or general questions about vaccines, check out https://vaccine.chop.edu. Subscribe to our Parents PACK newsletter, https://bit.ly/3KfLUoO.

  2. 9 сент.

    Types of Vaccine Ingredients - VEC Vaccine Notes | Vaccine Education Center at Children’s Hospital of Philadelphia

    Find out what ingredients are in vaccines, whether they’re safe, and how they are measured in this episode of VEC Vaccine Notes. Charlotte Moser, Co-Director of the Vaccine Education Center, breaks down the different types of ingredients in vaccines and why they are used. Guided by Paracelsus’ quote, "the dose makes the poison," this episode covers how relative quantities in vaccines (typically from nanograms to milligrams) compare with ingredient exposures in the context of daily life. Watch the episode to find out: Why avoiding any exposure to a particular vaccine ingredient can be difficult How to consider vaccine risks in the context of other exposures to vaccine ingredients How a raisin can help with estimating quantities The difference between weight-based quantities (like milligrams) and ratio-based quantities (like parts per million) The different types of antigens used in vaccines The three ways adjuvants can make vaccines work better and the five types currently used in the US The different roles of stabilizers and preservatives How manufacturing byproducts are like sand after a day at the beach Check out the video version on YouTube. To learn more about the different types of ingredients in vaccines and why they’re present, please visit https://bit.ly/vec-vax-ingredients.  Questions? Submit the VEC Vaccine Notes form, https://bit.ly/contact-vec-vaccine-notes. For other vaccines, diseases or general questions about vaccines, check out https://vaccine.chop.edu. Subscribe to our Parents PACK newsletter, https://bit.ly/3KfLUoO.

  3. 27 мая

    Hepatitis A - VEC Vaccine Notes | Vaccine Education Center at Children’s Hospital of Philadelphia

    Charlotte Moser, Co-Director of the Vaccine Education Center at Children's Hospital of Philadelphia, talks about hepatitis A and the vaccine. She explains what makes the hepatitis A virus so hardy and why everyone is at risk for infection. She addresses common questions about the opioid epidemic’s connection to outbreaks, travel precautions, and the differences between hepatitis A and B. She also discusses the relative risks and benefits of the disease and vaccine. Watch the episode to find out:  • Why virtually anyone can get hepatitis A • Links between spread of hepatitis A and the opioid epidemic • Two reasons children are recommended to get this vaccine • Why it's more difficult to know when children have hepatitis A • Details about a concerning outbreak of hepatitis A in Virginia in 2021-2022 • The difference between hepatitis as a symptom versus infection with a type of hepatitis virus • Differences between hepatitis A and hepatitis B • Information about why hepatitis A vaccine recommendations changed over time  To learn more about hepatitis A and the vaccines to prevent it, please visit https://bit.ly/vec-hepa.  Questions? Submit the VEC Vaccine Notes form, https://bit.ly/contact-vec-vaccine-notes. For other vaccines, diseases or general questions about vaccines, check out https://vaccine.chop.edu. Subscribe to our Parents PACK newsletter, https://bit.ly/3KfLUoO.

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Listen to “VEC Vaccine Notes,” a video and podcast series presented by the Vaccine Education Center at Children's Hospital of Philadelphia. Each episode offers vaccine information in a convenient format, so families have the answers they need to make informed decisions, including details and context that addresses what they may have heard in the news or in conversation with others. This podcast is for general informational and educational purposes only and is not to be considered as professional medical advice for your personal health or for your family's personal health. You should not use it to replace any relationship with a physician or other qualified healthcare professional. For medical concerns, including decisions about vaccinations, medications and other treatments, you should always consult your physician or, in serious cases, seek immediate assistance from emergency personnel. Clinicians must rely on their own informed clinical judgment in making recommendations to their patients. ©2026 The Children’s Hospital of Philadelphia.

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