http://bmj.bmjjournals.com/cgi/eletters/330/7500/1132#107902

Re: Re: Mumps and Rubella 26 May 2005
 
John Stone,
none
London N22

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Re: Re: Re: Mumps and Rubella
 

 

Best et al offer an extravagant range for the incidence of encephalitis in cases of mumps of between 1:400 and 1:6000. These figures also contrast with the Health Protection Agency which offers a higher incidence figure of 1:4000. But where do all these figures come from? Would you not expect one figure for the UK rather than an interesting selection? Is it too much to ask that they reveal their sources if they are going to make such claims?

For the record the CDC Pink Book states: "Encephalitis is rare (less than 2 per 100,000 mumps cases)." p.136 [1]

The 1:400 figure is more than 100 times greater than that for the US! What is going on?

{1] http://www.cdc.gov/nip/publications/pink/mumps.pdf

Competing interests: Autistic son