16,1 Haughwout and Horrilleno: Intestinal Parasites 51 
This is rather a large proportion of diseases of a certain type 
to occur among the admissions to a general medical service, but 
it is a fair index of the prevalence of respiratory diseases among 
Filipino children. All are exceedingly prevalent, and tubercu- 
losis is a veritable scourge in the country. 
We encountered twelve cases of tuberculosis in our series. 
Six of these were diagnosed as tuberculosis of the peribronchial 
glands, and six as pulmonary tuberculosis. We do not wish, at 
this time, to be understood as attempting to explain tuberculosis 
in Filipino children as developing from early Ascaris infections ; 
the time is not ripe for that. Mendoza-Guazon,(43) in her 
study of the autopsy findings in Filipino children under 5 years 
of age, reports bronchopneumonia in 18 per cent of her cases, 
and lobar pneumonia in 3.6 per cent. Her tuberculosis find- 
ings were 8 per cent. She calls attention to the fact, which 
Musgrave and Sison have indicated, that among the Filipinos 
“infection among children probably is much below that in adults, 
because many die before the first year of life and no doubt 
before tuberculosis has been contracted or has developed to a 
degree sufficient for recognition.” 
Mendoza-Guazon also draws attention to the views of Rothe(49) 
and Dunn, (16) who believe that the respiratory tract is the 
usual entrance of tubercular infection in children. 
On the whole, however, it seems better not to carry pulmonary 
involvement in ascariasis beyond the pneumonias and bron- 
chitis until we have more definite knowledge than we now have. 
Furthermore, discussion on the basis of the incidence of pul- 
monary diseases in children in the United States can scarcely 
be said to promise much along these lines until we have more 
reliable data regarding the incidence and distribution of asca- 
riasis among the children of that country. 
With all deference to the fallacy of concomitant variations, it 
would seem worth while seriously to inquire into the possible 
relationship between diseases of the respiratory tract and early 
infestation with Ascaris among Filipino children. 
At the same time the situation presents interesting problems 
from the viewpoints of the parasitologist and the pathologist. 
Naturally, it occurs to the pathologist and clinician to inquire 
how many larvae would be required to produce a definite, harmful 
reaction in the lungs. Apparently the lung stages of Ascaris 
do not exceed 2.5 millimeters in length. In other words they 
are exceedingly minute; but that, in itself, does not necessarily 
prove anything. The capacity of these larval forms to work 
