Skip to main content
Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios
Bauman - Microbiology with Diseases by Taxonomy 6th Edition
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Bauman 6th EditionCh. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios문제 1
21장, 문제 1

Match the disease with the causative pathogen in the list.


___ Spotted fever rickettsiosis
___ Murine typhus
___ Epidemic typhus
___ Scrub typhus
___ Ehrlichiosis


A. Rickettsia typhi
B. Rickettsia prowazekii
C. Rickettsia rickettsii
D. Orientia tsutsugamushi
E. Ehrlichia chaffeensis

검증된 단계별 안내
1
Understand that each disease listed is caused by a specific bacterial pathogen, mostly from the genera Rickettsia, Orientia, or Ehrlichia, which are obligate intracellular bacteria transmitted by arthropods.
Identify 'Spotted fever rickettsiosis' as a disease caused by Rickettsia species, specifically Rickettsia rickettsii, which is known for causing Rocky Mountain spotted fever.
Recognize 'Murine typhus' as a disease caused by Rickettsia typhi, typically transmitted by fleas from rodents.
Match 'Epidemic typhus' with Rickettsia prowazekii, which is transmitted by body lice and causes severe outbreaks.
Associate 'Scrub typhus' with Orientia tsutsugamushi, a related organism transmitted by chigger mites, and 'Ehrlichiosis' with Ehrlichia chaffeensis, which infects white blood cells and is transmitted by ticks.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Rickettsial Diseases and Their Pathogens

Rickettsial diseases are caused by bacteria in the genera Rickettsia and Orientia, transmitted mainly by arthropod vectors like ticks, fleas, and lice. Each disease is linked to a specific pathogen species, such as Rickettsia rickettsii causing spotted fever rickettsiosis. Understanding these associations is key to accurate diagnosis and treatment.
추천 영상:
03:40
Introduction to Pathogenic Toxins

Disease-Vector-Pathogen Relationships

Many rickettsial diseases are transmitted through specific vectors that carry particular pathogens. For example, murine typhus is transmitted by fleas carrying Rickettsia typhi, while epidemic typhus is spread by lice infected with Rickettsia prowazekii. Recognizing these relationships helps in matching diseases to their causative agents.
추천 영상:
05:59
Symbiotic Relationships

Differentiation Between Closely Related Pathogens

Closely related pathogens like Rickettsia and Ehrlichia cause distinct diseases with overlapping symptoms but differ in their biology and vectors. Ehrlichiosis, caused by Ehrlichia chaffeensis, is distinct from rickettsioses and involves different host cells. Distinguishing these pathogens is essential for proper disease identification.
추천 영상:
04:07
Differential Staining
관련 실천
교과서 질문

The bacterium that causes spotted fever rickettsiosis (RMSF) is more likely to infect a human ______________.

a. If an infected tick feeds for several hours

b. When an infected tick initially penetrates the skin

c. When contaminated tick feces dry and become airborne

d. If the human is exposed to rodent feces containing the bacterium

1044
views
교과서 질문

Suggest a hypothesis to explain why rickettsias are obligate parasites.

1035
views
교과서 질문

Label inclusion, elementary, and reticulate bodies of Chlamydia: <IMAGE>

1175
views
교과서 질문

Label the following stages and structures of the chlamydia life cycle: elementary body, endocytosis, vesicle, host cell, inclusion body, reticulate body. For B–D, indicate how many hours have typically transpired since infection. <IMAGE>

1169
views
교과서 질문

Most human infections caused by species of Rickettsia ___________.

a. Are acquired from fomites

b. Could be prevented by hand washing

c. Are transmitted via vectors

d. Are sexually transmitted

986
views
교과서 질문

Describe the three developmental stages of the bacteria Ehrlichia and Anaplasma.

1064
views