While no period of life is exempt from influenza, it has been observed, during the pandemics of grip that have encircled the world, that infants are in a high degree immune from this scourge. During the recent epidemic of December and January, 1900 and 1901, I had under my observation, at the one time and in the same institution, four infants suffering from protracted pneumonia of influenzal origin, which, I trust, are of sufficient interest to present their histories and exhibit some pathologic specimens.
It is not my wish to convey the impression that grip in infants usually runs such a protracted course as the cases I present. During this period of life, grip is as protean in all its characteristics as in other life epochs. None the less the simultaneous occurrence of four cases in an institution that shelters sixty to seventy-five babies argues for the great frequency of
WALLS FX. PROTRACTED INFLUENZAL PNEUMONIA IN INFANCY.. JAMA. 1901;XXXVII(9):560–565. doi:10.1001/jama.1901.62470350016002e
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