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Pathogenesis of respiratory syncytial virus disease in infancy
  1. Constance A. C. Ross,
  2. I. W. Pinkerton,
  3. F. A. Assaad


    In a series of 54 children under 1 year old with respiratory syncytial virus infection, the highest proportion of severe illnesses (bronchiolitis and pneumonia), and the highest proportion of `slow' antibody responses, were found in children under 6 months. Severe illness may therefore be related to immunological immaturity and to lack of protection by maternal antibody, rather than to an allergic response as has been suggested. A high male to female ratio (approximately 2: 1) was found both in the present series, and in two larger series of respiratory syncytial virus infection in infants.

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