Miscellaneous Bacteria Flashcards
Most common cause of Walking pneumonia and Atypical CAP
Mycoplasma
Which bacteria don’t have Cell wall
Mycoplasma
Which bacteria’s cell membrane have sterols
Mycoplasma
Mycoplasma is grown on which agar
PPLO Agar (Pleuropneumonia like organism)
Colonies shown by Mycoplasma on PPLO Agar
Fried egg colonies
Stain used for Mycoplasma
Diene’s stain
Which one is the smallest bacteria
Mycoplasma - 130-350 nm - can pass through bacterial filters
Mycoplasma Mnemonic
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
Pulmonary symptoms caused by Mycoplasma
Walking pneumonia
Atypical pneumonia
Associated with Cold agglutinin disease (AIHA)
Extrapulmonary features associated with Mycoplasma
Meningitis
Encephalitis
Gullian barre syndrome
Steven Johnson’s syndrome
Carditis
Bacters includes
Campylobacter
Helicobacter
Bacters features
COPS
Catalse+ve
Oxidase +ve
Spiral rods
Campylobacter features
C. Jejuni
Thermophilic - grows at 42°C
Campylobacter Jejuni Mnemonic
CAMPYLOBACTER JEJUNI
CAMP - Food, water, loo, stars - CNS
Bacter - COPS
Jejuni - june @42°C
Campylobacter Jejuni causes and Route of transmission
Causes diarrheal disease
Route - Ingestion (Contaminated poultry)
Incubation period of Campylobacter Jejuni
1-7 days
Clinical features of Campylobacter Jejuni infection
Fever
Abdominal pain
Watery diarrhea
Complications of Campylobacter Jejuni infection
Gullian barre syndrome (Serotype OS19)
Intestinal infection caused by Bacter family
Inflammatory diarrhea, abd pain, fever
Pseudoappendicitis
Loose stools to bloody diarrhea
Extraintestinal clinical features of Bacters
Due to Campylobacter fetus
Bacteremia
Spesis
Meningitis
Vascular infections
Microscopic findings of Campylobacter Jejuni
Comma/S/Gull wing shaped
Darting/Shooting star Motility
Fecal leukocytes
Gram Negative
Selective media used for Diagnosis of Campylobacter Jejuni
Campy BAP /skirrow media
Selective media finding of Campylobacter Jejuni
Effuse droplet like colonies
Treatment of Campylobacter Jejuni infection
Symptomatic
Azithromycin only in severe prolonged illness
Helicobacter pylori features
COPS
Urease +ve
Virulence factors of Helicobacter pylori
VacA (Vacuolating Cytotoxin A)
CagA (Cytotoxin Associated gene A)
Diseases caused by Helicobacter pylori
Chronic gastritis B
Peptic ulcer disease
Adenocarcinoma stomach cancer
MALToma (Marginal zone Lymphoma)