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Latest Medical Research Council Centre for Outbreak Analysis and Modelling Stories

2010-06-24 13:49:55

A vaccine-derived strain of poliovirus that has spread in recent years is serious but it can be tackled with an existing vaccine A vaccine-derived strain of poliovirus that has spread in recent years is serious but it can be tackled with an existing vaccine, according to a new study published today in the New England Journal of Medicine. Vaccine-derived polioviruses can emerge on rare occasions in under-immunized populations, when the attenuated virus contained in a vaccine mutates and...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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