Intended for healthcare professionals

Letters Cow’s milk allergy in children

Challenge is not crucial

BMJ 2009; 339 doi: (Published 07 September 2009) Cite this as: BMJ 2009;339:b3622
  1. Yousuf Karim, consultant immunologist1,
  2. Zoe Adhya, speciality registrar in immunology2
  1. 1Frimley Park Hospital, Frimley, Surrey GU16 7UJ
  2. 2Royal Surrey County Hospital, Guildford GU2 7XX
  1. yousuf.karim{at}

    Apps and Beattie state that diagnosis of cow’s milk allergy should be confirmed by challenge, even in those at risk of severe reactions.1 In practice, such confirmation is rarely done as it can be dangerous, is resource consuming, and is often unnecessary with a good history, positive test …

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