Japanese river fever often shows bronchial involvement and cough at the time of the height of the fever.
In ancylostomiasis cases with cough and bronchitis have been reported and it seems probable that such manifestations may be connected with the course of the larvae through the pulmonary passages to reach the intestinal tract.
The filarial embryos of F. bancrofti remain in the lung capillaries during the day and recently such embryos have been found in blood coughed up from the lungs.
Katayama disease may show a localized bronchitis early in the attack and from its rapid appearance and disappearance would seem to be a sort of patchy pulmonary oedema. This is connected with the passage of the larvae through the lungs.
Broncho-pneumonia is probably the most common complication of typhus fever.
An affection known as gangosa or rhino-pharyngitis mutilans causes great tissue loss about nasal and buccal cavity. The voice has a peculiar nasal quality. It is possibly a manifestation of tertiary yaws.
Kala-azar patients are often carried off by a terminal pneumonia probably connected with the leucopenia and marked diminution of polymorphonuclears.
In leprosy, also, the victims are frequently carried off by pulmonary tuberculosis.
Relapsing Fever.—In relapsing fever there is frequently a moderate bronchitis at the time of the first febrile accession.
Bronchial Spirochaetosis.—There is a condition which more or less resembles lobar pneumonia, even to rusty sputum, but without signs of consolidation, and with negative Roentgenograms, when we find spirochaetes in the sputum. Another type of bronchial spirochaetosis is when the clinical picture is more that of pulmonary tuberculosis. There is question whether these spirochaetes are causative or only accidental.