Measles vaccine contains the following as a preservative:
Measles vaccines contain sorbital and hydrolysed gelatine as stabilizer, as well as small amount of neomycin as preservative but not Thiomersal. Ref: Park's textbook of Preventive and Social Medicine, 21st edition, page-138
Streptomycin
Cholramphenicol
Neomycin
Thiomersal