BACTERIOLOGY IN A NUTSHELL. 



Prevention. 



Yellow 



Fever 



Commission. 



Cause. 



trophy (morbid enlargement) of the cellular 

 tissues, known as "elephantiasis." 



Prevention consists in removing the sources 

 whereby drinking water is contaminated and in 

 destroying the mosquito. 



Yellow Fever. The seat of invasion in 

 yellow fever is the blood. While yellow fever 

 is not a disease commonly met with by the nurse 

 in this part of the country, we will speak of it 

 briefly in this connection. It is a disease which 

 is very rapidly spread by means of a species of 

 mosquito, the stegomyia fasciata. Dr. Carlos 

 Finlay, of Cuba, in the year 1881, first pro- 

 claimed positively that this species of mosquito 

 carries the yellow fever germ, which as yet 

 remains undiscovered; but the connection of 

 the mosquito with yellow fever announced by 

 Finlay waited until 1900 for its experimental 

 demonstration at the hands of the yellow fever 

 commission consisting of Drs. Reed, Carroll, 

 Lazear and Agramonte. Two members of this 

 commission acquired the disease, one of whom, 

 Lazear, lost his life from its effects. A number 

 of American physicians had been suspicious of 

 the mosquito years prior to Finlay's time, hav- 

 ing observed their prevalence during yellow 

 fever epidemics. Dr. Rush, in 1793; Dr. 

 Weightman, in 1839; Drs. Wood and Barton, 

 in 1853, 3,11 had given voice to this opinion. 

 These insects transmit the germs by direct 



