To the Editor:—
The report of Wright and Gold in The Journal, August 11, of Loeffler's syndrome following cutaneous helminthiasis adds a hitherto unreported etiologic factor and supports the view that this syndrome is an allergic phenomenon. For the sake of completeness, it is worthy of note that the first report of Loeffler's syndrome in the United States known to me indicated that the allergic response in the case observed (Ellis, Ralph V., and McKinlay, C. A.: Allergic Pneumonia, J. Lab. & Clin. Med.26:1427 [June] 1941) was due to the oral administration of a sulfonamide compound.