This clinical trial is focused on the prevention of monkeypox, also known as mpox, which is a viral infection. The study is investigating the use of a vaccine called Modified Vaccinia Ankara – Bavarian Nordic Live Virus, also referred to as MVA-BN. This vaccine is given as a booster dose to help protect against mpox. The trial will compare two methods of administering the booster dose: one given just under the skin, known as subcutaneous injection, and the other given into the skin, known as intradermal use.
The purpose of the study is to see if the intradermal booster dose is as effective as the subcutaneous booster dose in creating an immune response, which is the body’s way of defending against infections. Participants in the study will receive either the intradermal or subcutaneous booster dose, and their immune response will be monitored over time. The study will also look at the safety of the vaccine and any side effects that may occur.
Participants will be followed for a period of time to assess their immune response at different intervals, such as one month and six months after receiving the booster dose. The study will also monitor for any serious side effects and the occurrence of any breakthrough infections, which are infections that occur despite vaccination. The trial aims to provide valuable information on the best way to use the MVA-BN vaccine to protect against mpox.



Belgium
France
Ireland
Sweden