286 The Control of Mosquitoes 



residents were sick. In order to prevent the 

 concealing of cases, patients were not compelled 

 to go to hospital, but could remain at their resi- 

 dences and be treated by their family physicians 

 under conditions specified by the chief sanitary 

 officer. In addition, a reward of $50.00 was paid 

 to the first person reporting a case of illness which 

 was subsequently diagnosed by the Yellow Fever 

 Board as yellow fever. 



When a suspected case of yeUow fever was 

 reported, the patient and his relatives or friends 

 were interviewed, and an effort made to transfer 

 him to Ancon Hospital. Almost all Americans 

 acceded. Where the patient preferred to remain 

 at his home, his room was at once made mosquito- 

 proof. The windows and all doorways except 

 one were screened with immovable screens. The 

 single entrance door was fitted with a vestibiile 

 provided with two screened doors. Both these 

 doors were fitted with strong springs to make 

 them self-closing. The outer door was kept 

 locked, and the key was in charge of a guard 

 employed by the sanitary department. These 

 guards were on duty in eight-hour shifts, that 

 the door might not be left unguarded until the 

 patient was removed from the room. At the 

 termination of the case his room was fumigated, 



