Exam 3 - Lecture 23: Mycoplasmas, Rickettsia, and Chlamydia

Question 1

2

Mycoplasmas have a variety of shapes but no ______.

Question 2

2

Instead of a cell wall, mycoplasmas have membrane _____.

Question 3

2

Mycoplasmas appear as a ______ colony

Question 4

2

Mycoplasmas are the smallest _______ bacteria at _____ micrometers.

Question 5

3

Do mycoplasmas have a gram stain?

Question 6

8

Whata are the two genera of Mycoplasmataceae that are important agents of human disease?

Question 7

The Mycoplasma species associated with human disease are found in the human respiratory tract (_______) urogenital & respiratory tracts (____, _____, and ______).

Question 8

13

_____ of Mycoplasma pneumoniae represents unique virulence determinant among bacterial pathogens.

Question 9

14

M. pneumoniae adheres tightly to and fuses with the membranes of respiratory epithelial cells by a specialized _______. This action inhibits ____ and over the course of a few weeks the cilia and epithelial cells are _____.

Question 10

16

M. pneumoniae causes a respiratory disease often referred to as ____ or _____. Atypical refers to the fact that the onset is _____, not ____.

Question 11

17

Atypical also means it cannot be treated with ____.

Question 12

19

Mycoplasmas have a high incidence in ___ year olds and high hospitalization under ___ years old.

Question 13

19

Mycoplasmas among adults accounts for ___% of community acquired pneumonia.

Question 14

19

Are pneumonias caused by mycoplasmas rare?

Question 15

20

What are 6 symptoms to look for in Mycoplasmas?

Question 16

21

What is the name for a target lesion associated with Mycoplasma, herpes infection, streptococcal infection, and tuberculosis?

Question 17

23

M. pneumoniae skin rashes and ulcerations of the oral mucosaassociated with the skin rash and conjunctivitis may lead to _____ syndrome.

Question 18

26

How is diagnosis made for Mycoplasmas? What is the most accurate and sensitive test?

Question 19

28

Can penicillin treat Mycoplasmas?

Question 20

28

Can Tetracycline treat Mycoplasmas?

Question 21

28

Can Erythromycin treat Mycoplasmas?

Question 22

29

What mycoplasma causes pelvic inflammatory disease, vaginitis, pyelonephritis, and spontaneous abortion?

Question 23

29

What mycoplasma disease causes non-gonococcal urethritis?

Question 24

29

What urogenital tract infection causes NGU, prostatitis, and chorioamnionitis/premature delivery?

Question 25

32

What disease does this describe?

-infection of the upper respiratory tract due to infection in women )15-25 years old)
-affects the uterus, Fallopian tubes, and/or ovaries
-typically an ascending infection, spreading from the lower genital tract

Question 26

32

Pelvic Inflammatory Disease is associated with a variety of _______ infections.

Question 27

32

_____ is a very mysterious disease and often very hard to diagnose. It is often not taken seriously.

Question 28

32

There is more and more evidence that ____ infections have played an important role in Chronic Fatigue syndrome.

Question 29

34

What are three examples of L-form bacteria?

Question 30

34

What are the 2 types of L-form bacteria?

Question 31

34

What are the unstable L-form bacteria?

Question 32

34

What are the stable (L-form) bacteria?

Question 33

35

L-form bacteria are _____ bacterial variants. They can produce ____ only (osmotically fragile).

Question 34

25

Reproduction of L-form bacteria is stopped by _____.

Question 35

38

L-forms may be the cause of _____.

Question 36

38

Saarcoidosis is a chronic disease of unknown cause marked by the formation of nodules in the ____ and ____ and _____ and _____.

Question 37

43

Is Rickettsia gram positive or negative?

Question 38

43

Is Ricketssia an obligate intracellular?

Question 39

43

Ricketssia is an ____ vector.

Question 40

43

How small is Rickettsia?

Question 41

44

Ricekttsia rickettsii causes ______.

Question 42

44

What are three vectors of disease for Rickettsia rickettsii?

Question 43

44

Rickettsia rickettsii infects ____ cells.

Question 44

48

What are 6 symptoms of Rocky Mountain Spotted Fever?

Question 45

52

Typhus is sudden onset of ____, ____, ____, and _____,

Question 46

52

What does this describe?

-R. prowazekii
-louse
-outbreaks associated with poor sanitation
-rare

Question 47

52

What does this describe?

-Fleas
-Tropics
-Subtropics

Question 48

52

What is the go-to diagnostic for Typhus?

Question 49

54

What does this describe?

-papule at bite site of mite
-echar
-flu-like symptoms
-lymphadenopathy

Question 50

56

Chlaymdyia is an ______ parasite.

Question 51

56

Is chlamydia gram negative or gram positive?

Question 52

56

What are the three main species of Chlamydia causing human infection?

Question 53

57

Chlamydia trachomatis infects epithelial cells of the ____, ____, ____, and ____.

Question 54

57

Clamydia trachomatis is a major cause of _____ worldwide.

Question 55

58

_____ people worldwide have eye infection (trachoma) due to Chlamydia trachomatis.

Question 56

59

There are _____ million cases of Chalmydia trachomatis? What is the percentage increase since 2014?

Question 57

61

Is the risk of transmission per sexual episode greater for clamydia or gonorrhea?

Question 58

61

Urethritis usually occurs in _____. Theer is a ____ day incubation period.

Question 59

62

What do these symtpoms describe?

-vaginal discharge, mild abdominal pain, bleeding, and burning urination

Question 60

63

What is inflammatory arthritis after infection called?

Question 61

63

Chlamydia trachoma causes ulcerative disease of _____.

Question 62

64

Conjunctiva infection = _____ + folliculitis

Question 63

66

What are two treatments for eye infectio of neonatal conjunctivitis / pneumoniae?

Question 64

67

What does LGV stand for?

Question 65

67

LGV is ____ transmitted and is seen most commonly in men who _____.

Question 66

67

What are four symptoms associated with LGV?

Question 67

70

What is the treatment for LGV?

Question 68

71

Chlamydiophilia pneumoniae clinical presentation involves _____ and _____.

Question 69

71

Chlamydophila pneumoniae has a ___ day incubation period.

Question 70

72

What is the test of choice for Chlamydophila pneumoniae?

Question 71

73

What is the natural reservoir for Chlamydophila psittaci?

Question 72

73

___% of human C. psittaci infection come from pet birds

Question 73

73

What is the incubation period for Chlamydophilia psittaci?

Question 74

74

What are 6 clinical manfiestations of Chlamydia psittaci?

Question 75

75

What is the lab diagnosis for Chlamydophila psittaci?

Question 76

75

Imported pet birds are quarantined for ____ days and feed may be medicated with ____.