200 INFECTIOUS AND PARASITIC DISEASES. 



(b) Localization: Eyes, nose, mouth, throat, and 



skin. 



(c) Entry: Probably air borne to mouth or nose. 



(d) Exit : Oculo-nasal secretions, saliva, breath and 



desquamated skin. 



(e) Contracted: By contact with sick through air; 



fomites ; third person. 



(f) Disinfection; Same as for small-pox. 



(g) Prophylaxis: Same as for small-pox. 



Mumps (epidemic parotitis). 



(a) Cause: Unknown. 



(b) Locahzed: One or both parotid glands. 



(c) Entry: Probably mouth. 



(d) Exit: Supposedly, in saliva. 



(e) Disinfection and Prophylaxis: Only sputum 



need be disinfected; however, because in 

 the army the efficiency is severely taxed by 

 the orchitis which so commonly occurs 

 with mumps in adults, isolation and dis- 

 infection as for other contagious diseases 

 should be practised. 



Pneumonia (Lobar pneumonia). 



(a) Cause: Diplococcus pneumonice (pneumococcus, 



micrococcus lanceolatus) ; is non-sporogen- 

 ous. 



(b) Localization: Lungs; by extension, in blood, 



pleural cavity and pericardium. 



