PLAGUE 17s 



PUBLIC PROPHYLAXIS. 



Institute a sanitary service in an infected country with collectors, 

 bacteriologists, &c. 



Port sanitary authority to investigate and disinfect ships. 



Isolate as far as possible. 



Quarantine five davs. 



Medical inspection of passengers by rail, road and river. 



Disinfection of clothing, and merchandise by Clayton's method. 



Rats to be caught and examined. 



Recognition of early cases, investigations oi sudden deaths. 



House to house visitation by M. O. 



\'illage houses burned. Kill rats by SO., SO^, Danyz's virus on 

 bread; encourage cats. Work from the outside of a circle. Cover 

 hands with oil of aniseed as rats know if humans have touched food 

 set to catch them. Phosphorus paste, with glucose to prevent com- 

 bustion, with lard as a basis. Traps; two to 100 of the population (in 

 proportion). 



Prophylaxis as suggested by Haffkine. 



(i) Discovery and notification of persons attacked with disease. 



(2) Isolation of those attacked. 



(3) Certain precautions with regard to the disposal of the dead. 



(4) Segregation of those who have come in contact with the sick or 

 dead. 



(5) Institution of cordons round infected areas, or 



(6) Placing in quarantine arrivals from infected places. Detaining 

 the sick and suspected, liberating the remainder. 



(7) Or examine travellers, isolate sick and suspected and let others 

 free under surveillance. 



These are always difficult, often impracticable, and achieve little. 



Second method. Within the affected area. 



Destroy or disinfect houses, furniture, clothing, bedding, carriages, 



goods, warehouses, grains and other stores, garbage, drains and 



streets. 



Outside the infected area. 



Refusal to admit carts, trains and ships with goods from 

 infected places; or refuse to admit only certain goods; or inspec- 

 tion of trains, carts, ships with measures by which these and 

 the goods they convey, as well as the belongings of travellers, 

 are rendered harmless. 



The expense and difficulty of such is enormous. 



Third method. 



(i) Destruction and keeping away of rats by poisoning, trapping, 

 tar and sulphuric acid mixture, or by the domestic cat. 



