I wondered whether any of you had any advice about tetanus jabs and themerisol (sp?). I haven't had ds MMR'd, since we have a family history of ASD ? but I sort of feel I ought to consider having him vaccinated against tetanus, as he's due to start school soon. However, I heard a radio prog some time ago about worries about themerisol (mercury based preserving agent) in some vaccines possibly being dodgy, and not allowed in the US, but wasn't paying full attention ? does anyone have any info? Is there a choice as to the type of tetanus jab you have in the UK? What should I do?