First doses of a Covid-19 vaccine are being offered without an appointment.
Two more walk-in vaccination clinics will be held this week at the Chester Street hub in Douglas.
Both are offering the Pfizer-BioNTech vaccine and are open to anyone over the age of 18 on a "first come, first served basis", said the government.
The walk-in sessions are available today (Tuesday) and tomorrow (Wednesday) between 09:00 and 12:00 (BST).
The Manx government said about 89% of adults on the island have received their first jab and about 80% have now been given both.