A method known as intradermal vaccination allows a single-use vial to be split into five injections. Bavarian Nordic makes Jynneos, the only monkeypox-specific vaccine approved in the United States.

Intradermal water blocks consist of 4 intradermal injections of 0.05- to 0.1-mL sterile water (using a 1-mL syringe with a 25-gauge needle) to form 4 small blebs, 1 over each posterior superior ...

However, the traditional intradermal injection provides limited protection for young children and almost none for adults. In an article published in Nature Microbiology, researchers detailed a new ...