Immunisations as Possible Triggers


This letter summarises the evidence both for and against a link between immunisations and ME/CFS. It should be of interest to lawyers researching in this area and healthcare professionals presented with a patient whose trigger appears to have been a vaccination.

There is a considerable amount of anecdotal evidence to support a link between immunisation, hepatitis B in particular, and the onset of ME/CFS. However, there is a lack of good quality, epidemiological evidence from prospective or retrospective studies to either refute or support such a link.

Good quality research studies are clearly needed to examine this issue because the theory of immunisation-induced ME/CFS is a perfectly reasonable proposition in view of the ability of immunisations to produce a Th-2 dominant response.

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The ME Association telephone helpline – ME Connect – is available every day of the year, during the hours of 10am-12noon, 2pm-4pm and 7pm-9pm. Please phone: 0344 576 5326 if you have any questions or would simply like to talk to someone who is there to listen.

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