CONTAGIOUS DISEASES 393 



5. What are the chief means by which disease bacteria are 

 carried from one person to another ? 



6. How does the treatment for diphtheria differ from that for 

 smallpox ? 



7. What are the evidences of the effectiveness of vaccina- 

 tion for smallpox and of the antitoxin treatment for diphtheria? 



8. When is compulsory vaccination advisable ? 



9. What are the chief things to do in order to be protected 

 from typhoid fever ? 



10. Compare vaccination for typhoid fever with vaccination 

 for smallpox. 



1 1 . Where should the chief emphasis be laid in the control of 

 contagious diseases? 



12. What are the chief things to be done in the control of 

 tuberculosis ? 



13. What can you do to help in the fight against contagious 

 diseases ? 



REFERENCES 



Hough and Sedgwick, The Human Mechanism, Ginn and Co., 



Boston. Chaps. 30-31. 

 Ritchie, Primer of Sanitation, World Book Co., Yonkers-on- 



Hudson, N. Y. 



