A Study to Test if a Third Dose of the Vaccine is Safe in Current and Former Smokers Aged 40 to 80 Years Old and to Gather Information on the Immune Response Following the Third Dose of the Vaccine

Two doses administered intramuscularly at Day 1 and Day 61 in the deltoid region of the non-dominant arm and a third dose administered at either Day 181 or Day 361, according to each vaccination scheduling defined per protocol.

One dose administered intramuscularly at either Day 181 or Day 361 in the deltoid region of the non-dominant arm.