People who received the Johnson&Johnson vaccine for their first jab, and who have since received a booster with a mRNA vaccine, will be eligible to receive a second booster.

This additional booster can be administered three months after receiving the second dose. People affected will be able to visit a pop-up vaccine centre without an appointment, or they will be able to make an appointment at one of the three permanent vaccine centres via

As it stands, an initial vaccination with a single dose of the Johnson & Johnson vaccine, followed by an additional dose either of the J&J vaccine or a mRNA vaccine,  is considered as a complete vaccination with booster in Luxembourg and therefore meets Covid-Check requirements.

However, some European countries such as Germany require proof of three vaccinations. For this reason, the Ministry of Health has authorised a third jab for people affected by this, on a voluntary basis.