What type of injection is used for the Varicella vaccine (VARIVAX)?

The Varicella vaccine, also known as VARIVAX, is administered via subcutaneous injection. This route is chosen for various vaccines, particularly live attenuated vaccines, as it allows for adequate absorption and response without the complications sometimes associated with intramuscular injections. The subcutaneous route also helps to target the immune response more effectively for certain types of vaccines.

Using the subcutaneous route is beneficial because it allows the vaccine to remain in the tissue longer, which can enhance the immune response. It is important to ensure proper technique, such as injecting into the fatty tissue of the thigh or upper arm. Choosing the correct administration route is vital for the efficacy and safety of the vaccine, and in this case, subcutaneous administration is the established recommendation for the Varicella vaccine.