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"   Question  Since having the meningitis C vaccination my son seems to have had a full personality change: he has become moody, irritable, and violent towards me when I request him to do any tasks within his capabilities.   He seems to have gone from a very laid back happy, loving little boy to an uncontrollable nightmare in the space of two weeks.  Would the vaccination cause this kind of change?    Answer If your son&amp;#039;s behaviour seems to have changed dramatically since he had the meningitis C vaccine I can see why you might think this is the cause, but I can&amp;#039;t think of any reason why vaccination should produce such an effect.  Has anything else happened recently that might be upsetting him, or making him feel anxious or insecure?  Children who are worried sometimes react by becoming aggressive or uncooperative.  If your son is at nursery or school it would be worth asking the teachers if they&amp;#039;ve noticed the changes in him as well, and whether they know of anything that night be making him anxious.  If he starts to complain of any physical symptoms such as headaches, or if you notice other changes in him (loss of appetite, unusual tiredness and so on) then it would be worth taking him to see your GP to make sure there is no underlying physical problem that might be linked to the changes in his behaviour. Yours sincerely The NetDoctor Medical Team  Other Q&amp;amp;amp;As Can my daughter catch mumps if she hasn&amp;#039;t had the MMR jab? Can my daughter still have the MMR jab if she has already caught measles? How could my son get mumps even though he received the immunisation? Is the MMR vaccination safe? Should I avoid babysitting a child who has not had their MMR? Vitamin K concerns Where can I get a single-dose measles jab? Wondering about MMR Worried about polio jabs Would the flu jab help my daughter?  Last updated 18.06.2014 "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.netdoctor.co.uk/ask-the-expert/pregnancy-and-family/a10124/my-son-has-changed-since-his-meningitis-c-vaccine/>