Miscellaneous Bacteria Flashcards

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1
Q

Most common cause of Walking pneumonia and Atypical CAP

A

Mycoplasma

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2
Q

Which bacteria don’t have Cell wall

A

Mycoplasma

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3
Q

Which bacteria’s cell membrane have sterols

A

Mycoplasma

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4
Q

Mycoplasma is grown on which agar

A

PPLO Agar (Pleuropneumonia like organism)

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5
Q

Colonies shown by Mycoplasma on PPLO Agar

A

Fried egg colonies

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6
Q

Stain used for Mycoplasma

A

Diene’s stain

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7
Q

Which one is the smallest bacteria

A

Mycoplasma - 130-350 nm - can pass through bacterial filters

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8
Q

Mycoplasma Mnemonic

A

My - M/C cause of Walking pneumonia and Atypical CAP
Co - Cold agglutination test +ve, Cell wall deficient, Cell membrane has sterols
Pla - PPLO (Pleuropneumonia like organism), grown on PPLO Agar
Sma - Stain: Diene’s stain, smallest bacteria

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9
Q

Pulmonary symptoms caused by Mycoplasma

A

Walking pneumonia
Atypical pneumonia
Associated with Cold agglutinin disease (AIHA)

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10
Q

Extrapulmonary features associated with Mycoplasma

A

Meningitis
Encephalitis
Gullian barre syndrome
Steven Johnson’s syndrome
Carditis

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11
Q

Bacters includes

A

Campylobacter
Helicobacter

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12
Q

Bacters features

A

COPS
Catalse+ve
Oxidase +ve
Spiral rods

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13
Q

Campylobacter features

A

C. Jejuni
Thermophilic - grows at 42°C

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14
Q

Campylobacter Jejuni Mnemonic

A

CAMPYLOBACTER JEJUNI
CAMP - Food, water, loo, stars - CNS
Bacter - COPS
Jejuni - june @42°C

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15
Q

Campylobacter Jejuni causes and Route of transmission

A

Causes diarrheal disease
Route - Ingestion (Contaminated poultry)

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16
Q

Incubation period of Campylobacter Jejuni

A

1-7 days

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17
Q

Clinical features of Campylobacter Jejuni infection

A

Fever
Abdominal pain
Watery diarrhea

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18
Q

Complications of Campylobacter Jejuni infection

A

Gullian barre syndrome (Serotype OS19)

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19
Q

Intestinal infection caused by Bacter family

A

Inflammatory diarrhea, abd pain, fever
Pseudoappendicitis
Loose stools to bloody diarrhea

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20
Q

Extraintestinal clinical features of Bacters

A

Due to Campylobacter fetus
Bacteremia
Spesis
Meningitis
Vascular infections

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21
Q

Microscopic findings of Campylobacter Jejuni

A

Comma/S/Gull wing shaped
Darting/Shooting star Motility
Fecal leukocytes
Gram Negative

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22
Q

Selective media used for Diagnosis of Campylobacter Jejuni

A

Campy BAP /skirrow media

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23
Q

Selective media finding of Campylobacter Jejuni

A

Effuse droplet like colonies

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24
Q

Treatment of Campylobacter Jejuni infection

A

Symptomatic
Azithromycin only in severe prolonged illness

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25
Q

Helicobacter pylori features

A

COPS
Urease +ve

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26
Q

Virulence factors of Helicobacter pylori

A

VacA (Vacuolating Cytotoxin A)
CagA (Cytotoxin Associated gene A)

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27
Q

Diseases caused by Helicobacter pylori

A

Chronic gastritis B
Peptic ulcer disease
Adenocarcinoma stomach cancer
MALToma (Marginal zone Lymphoma)

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28
Q

Protective role of H Pylori

A

ABG analysis
A - prevents Adenocarcinoma esophagus
B - Barret’s esophagus
G - GERD
Analysis - Asthma

29
Q

Non invasive tests done for Diagnosis of H Pylori

A

Urea breath test - sensitive
Copro Antigen
Biochemical reactions - Urease, Catalse and Oxidase +ve
CLO test (Urease test)

30
Q

Invasive tests for diagnosis of H Pylori

A

Biopsy (Antrum)

31
Q

Microscopic finding of H Pylori

A

Spiral
Gram negative organism

32
Q

Stain used for diagnosis of H Pylori

A

Warthin Stary silver stain - black color
Modified Giemsa stain

33
Q

Warthin Stary silver stain is used for which organisma

A

H Pylori
Bartonella Henselae

34
Q

Treatment strategies of H Pylori

A

OCA
OBM
OBTM

35
Q

Gardenerella Vaginosis causes

A

Bacterial Vaginosis

36
Q

Microscopic finding of Gardenella vaginalis infection

A

On Pap smear - Cocco bacilli stuck on cells - CLUE CELLS

37
Q

Criteria of Bacterial Vaginosis

A

Amsel’s Criteria
- pH >4.5
- Whiff test - Discharge + 10% KOH - Fishy smell
- Clue cells

38
Q

Rat bite fever is caused by which organisms

A

Streptobacillus Moniliformis
Spirillum minus

39
Q

Streptobacillus Moniliformis causes

A

Monalisa have hills
Haverhill fever/Erythema arthriticum Epidermicum

40
Q

Incubation period and clinical features of Haverhill fever

A

IP - 7 to 10 days
C/F - Relapsing fever, Rash, Arthralgia

41
Q

Drug of choice of Haverhill fever

A

Penicillin

42
Q

Spirillum minus causes

A

Sudoku fever

43
Q

Incubation period, Clinical features and DOC For sudoku fever

A

IP - 1 to 3 weeks
C/F - Local ulcer, Lymphadenopathy, Relapsing fever, Rash, Arthralgia
DOC - Penicillin

44
Q

Pasteurella Multicoda Causes

A

Gram -ve
Cat/dog bite - Local site inflammation - Swelling, tenderness pus - Tenosynovitis, Osteomyelitis - Septicemia

45
Q

Treatment of Pasteurella Multicoda infection

A

Beta lactams

46
Q

Legionella Pneumophila causes

A

Legionellosis - Legionnaire’s disease(Pneumonic form)
Pontiac fever (non-pneumonic form)

47
Q

Clinical features of Pontiac fever

A

Mild fever
Myalgia
Cough (non productive)
Resp. Failure

48
Q

Infection route of Legionella Pneumophila

A

Inhalation of Aerosols( Air conditioner)

49
Q

Pathogenesis of Legionellosis

A

Bacteria in human - alveoli - multiply inside macrophages - dissemination(blood/LN) - contagious spread

50
Q

Incubation period of Legionellosis

A

2-10 days

51
Q

Stain used for Diagnosis of Legionella Pneumophila

A

Silver impregnation stain - Black color

52
Q

Culture done in case of Legionella Pneumophila infection

A

BCYE Agar (Buffered charcoal yeast extract)

53
Q

Treatment of Legionella Pneumophila

A

Macrolides

54
Q

Stain used and treatment of Klebsiella Granulomatis infection

A

Stain - Weight Giemsa stain - Donovan bodies
Treatment - Tetracyclines

55
Q

Erysipelothrix features

A

Non motile
Non sporing
Non capsulated

56
Q

Erysipelothrix leads to formation of

A

Erysipeloid - at the site of inoculation/cut/abrasion after handling animal products

57
Q

Culture media used for Diagnosis of Erysipelothrix

A

Tellurite medium/Tinsdale Medium

58
Q

Erysipelothrix Mnemonic

A

Erysipelo - Erythema, Erysipeloid
Thrix - Tellurite/Tinsdale Medium

59
Q

Treatment of Erysipelothrix

A

Penicillin

60
Q

Painful genital ulcers can be seen in which infections

A

HSV-2
Hemophilus Ducreyi

61
Q

Painless genital ulcers can be seen in which infections

A

Syphilis
Klebsiella Granulomatis
Lymphogranuloma venereum

62
Q

Which HACEK organism known to cause needle licker Osteomyelitis

A

Eikenella - shows motility due to type 4 pili

63
Q

Acinetobacter Baumanni known to cause

A

Hospital environment
Opportunistic nosocomial infections
VAP
Blood steam infections
Post Catheter UTI

64
Q

According to WHO,Acinetobacter Baumanni is classified with organism

A

ESKAPE Organisms - Priority Nosocomial infections

65
Q

Francisella Tularensis causes

A

Tularemia

66
Q

Transmission of Tularemia occurs by

A

Zoonotic infection
Contact with wild/domestic animals
Aerosols inhalation

67
Q

Classification of Tularemia on the basis of Clinical features

A

Ulceroglandular Tularemia - M/C
Pulmonary Tularemia
Oropharyngeal Tularemia

68
Q

Best Diagnostic method for Francisella Tularensis

A

Difficult to culture
PCR For Tularensis - Best

69
Q

Treatment of Tularemia

A

Gentamicin