Foundations in Microbiology
Foundations in Microbiology
9th Edition
ISBN: 9780073522609
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Chapter 21.L2, Problem 1CT

a. Why does syphilis have such profound effects on the human body?

b. Why is long-term immunity to syphilis so difficult to achieve?

Expert Solution & Answer
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Summary Introduction

To determine:

Why syphilis has such profound effects on human body and why is it difficult to achieve long-term immunity to it.

Introduction:

Syphilis is caused by the spirochete Treponema pallidum. It is a strict parasite that has complex growth requirements and this necessitates cultivating them in live cells.

Explanation of Solution

Humans act as sole natural host for the parasite. It is an extremely fastidious and sensitive parasite that cannot survive outside the host for long time and is rapidly destroyed by heat, drying, disinfectants, and other adverse conditions. It is transmitted sexually. Hence, it has such profound effects on human body. Protective immunity does not arise in case of humans against the syphilis pathogen and this makes vaccination difficult. Hence, long-term immunity to it is difficult.

Conclusion

Hence, it may be concluded that, humans being the sole host for parasite, syphilis has profound effect on humans and the ability to obtain protective immunity against it makes long-term immunity difficult.

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Chapter 21 Solutions

Foundations in Microbiology

Ch. 21.2 - Understand the pathogenesis of cholera.Ch. 21.2 - Name the usual source of infection for each genus...Ch. 21.2 - Prob. 9ELOCh. 21.2 - How could one differentiate the genera Vibrio,...Ch. 21.2 - Prob. 6CYPCh. 21.2 - Which two species of curviform bacteria are...Ch. 21.2 - Briefly describe the nature of food infection in...Ch. 21.2 - Prob. 9CYPCh. 21.3 - Prob. 10ELOCh. 21.3 - Understand the epidemiology and pathology of Rocky...Ch. 21.3 - Prob. 12ELOCh. 21.3 - Prob. 13ELOCh. 21.3 - Prob. 14ELOCh. 21.3 - Recall the names and characteristics of diseases...Ch. 21.3 - What do rickettsias and chlamydias derive from the...Ch. 21.3 - Provide an example of a species, vector, and...Ch. 21.3 - Prob. 12CYPCh. 21.3 - Prob. 13CYPCh. 21.3 - Prob. 14CYPCh. 21.3 - Prob. 15CYPCh. 21.3 - Prob. 16CYPCh. 21.3 - Prob. 17CYPCh. 21.4 - Describe the characteristics and diseases of...Ch. 21.4 - Describe how L forms may arise.Ch. 21.4 - Prob. 18CYPCh. 21.4 - Prob. 19CYPCh. 21.4 - Which body systems are affected by mycoplasma...Ch. 21.4 - Explain why penicillin therapy may result in the...Ch. 21.5 - Discuss the formation of plaque on tooth surfaces.Ch. 21.5 - Relate the formation of plaque to periodontitis.Ch. 21.5 - Prob. 22CYPCh. 21.5 - Prob. 23CYPCh. 21.5 - Prob. 24CYPCh. 21.5 - Prob. 25CYPCh. 21.L1 - Prob. 1MCQCh. 21.L1 - Prob. 2MCQCh. 21.L1 - Prob. 3MCQCh. 21.L1 - Prob. 4MCQCh. 21.L1 - Prob. 5MCQCh. 21.L1 - Prob. 6MCQCh. 21.L1 - Relapsing fever is spread by a. lice b. ticks c....Ch. 21.L1 - Prob. 8MCQCh. 21.L1 - Prob. 9MCQCh. 21.L1 - Prob. 10MCQCh. 21.L1 - Prob. 11MCQCh. 21.L1 - Prob. 12MCQCh. 21.L1 - Prob. 13MCQCh. 21.L1 - Prob. 14MCQCh. 21.L1 - Mycoplasmas attack the ____ of host cells. a....Ch. 21.L1 - Prob. 16MCQCh. 21.L1 - Prob. 17MCQCh. 21.L1 - Prob. 18MCQCh. 21.L1 - Prob. 19MCQCh. 21.L1 - Prob. 20MCQCh. 21.L1 - Prob. 1CSRCh. 21.L1 - What other risk factors could have alerted...Ch. 21.L1 - Prob. 3CSRCh. 21.L1 - Prob. 1WCCh. 21.L1 - Prob. 2WCCh. 21.L1 - a. In what ways are dental diseases mixed...Ch. 21.L1 - a. Which diseases in this chapter are zoonoses? b....Ch. 21.L2 - a. Why does syphilis have such profound effects on...Ch. 21.L2 - a. In view of the fact that cholera causes the...Ch. 21.L2 - Prob. 3CTCh. 21.L2 - Prob. 4CTCh. 21.L2 - Prob. 5CTCh. 21.L2 - Prob. 6CTCh. 21.L2 - Prob. 7CTCh. 21.L2 - Which two infectious agents covered in this...Ch. 21.L2 - a. In what way is the oral cavity an ecological...Ch. 21.L2 - Prob. 10CTCh. 21.L2 - Prob. 11CTCh. 21.L2 - Prob. 12CTCh. 21.L2 - Prob. 1VC
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