The term "intradermal" refers to something situated, occurring, or done within or between the layers of the skin. It can also describe an administration method where a substance, like a medication or vaccine, is introduced directly into the skin.
Intradermal injections, commonly used for administering vaccines and allergy testing, are given in the dermis, the layer of skin just below the epidermis. This method of administration allows for slower absorption compared to other routes, resulting in a more prolonged immune response.
Here are some additional points about intradermal injections:
- Examples of intradermal vaccines: The JYNNEOS vaccine for monkeypox and the Fluzone Intradermal vaccine for influenza are examples of vaccines administered intradermally.
- Advantages: Intradermal injections offer advantages such as reduced needle size, lower vaccine volume, and potentially improved immune responses.
- Limitations: Intradermal injections require specific techniques and training to be administered correctly, and they may not be suitable for all medications.
