Gram Negative Bacteria Flashcards
Reverse
Neisseria Meningitidis - meningitis and septicaemia
Neisseria ghonorrhoeae - urethritis in men - pelvic inflammatory disease
What are the forms of Neisseria spp that are of clinical significance?
Reverse
Aerobic gram negative cocci
What type of bacteria are Neisseria spp and Moraxella catarrhalis?
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Reverse
Can’t be stained with gram stains
Can’t be cultured under standard methods Mycobacterium Spirochaetes Chlamydia
What is meant by miscellaneous bacteria
Does salmonella ferment lactose?
NO
Reverse
Yes
Does E Coli ferment lactose?
Reverse
Klebsiella - UTI and pneumonia
Proteus spp - UTI
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What other commensals of the gut exist? (apart from E.Coli)
Reverse
NO
Does salmonella ferment lactose?
What type of organisms is pseudomonas?
Strict aerobic bacilli water and soil organisms
Contaminates medical equipment
Hospital acquired cause of sepsis: pneumonia, UTI Respiratory infection in cystic fibrosis
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What causes tuberculosis?
Mycobacterium tuberculosis
Reverse
Large (coliforms)
Small
What are the sub divisions of gram negative aerobic bacilli?
What is the test for syphilis?
Serology, nucleic amplification tests
What type of organism is E.Coli?
Coliform - large gram negative aerobic bacilli
Reverse
Treponem pallidum - syphilis
Borrelia burgdorferi - lymes disease
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Give an example of a spirochaetes
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Reverse
Bacteriodes Fragilis - normal colonic flora
Causes intra-abdominal abscess
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What are the important anaerobes? (BACILLI)
Reverse
Primary - Non-painful skin legions
Secondary - Systemic illness and rash
Latent - symptomatic episodes may occur
Tertiary - central nervous system Congenital - stillbirth, neonatal death or disease
What are the stages of syphilis?
Reverse
Prevotella - cause of dental abscess (pus that forms in the teeth and gums), aspiration pneumonia, human and animal bite infections.
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Name an oral anaerobe
What are the strains of chlamydia that cause respiratory infection?
Chlamydophila pneumoniae
Chlamydophila psittaci - contact with birds
Reverse
Urinary tract infection
Enterotoxogenic E.Coli - commonest cause of travellers diarrhoea
Enterohaemorrhagic E.coli - Bloody diarrhoea Haemolytic uraemic syndrome
What is the infection usually associated with Ecoli?
Reverse
Gut pathogen Coliform
What type of organism is salmonella?
Name a microaerophilic spiral bacilli
Helicobacter pylori - natural habitat is human stomach - damages mucosa and causes ulcers
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Reverse
Mycobacterium leprae
What causes leprosy?
What causes leprosy?
Mycobacterium leprae
What is the ZN stain used for?
Mycobacterium species
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What family do Coliforms belong in?
Enterobacteriaceae Inhabitants of the gut
What strain of chlamydia is responsible for the Ophthalmic and genital tract infection?
Chlamydia trachomatis - trachoma (tropical eye infections) Can lead to pelvic inflammatory disease and infertility
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What does salmonella cause?
Enterocollitis, with or without bloody diarrhoea
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What does typhoid cause?
Fever and constipation
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Reverse
Serology, nucleic amplification tests
What is the test for syphilis?
What are the sub divisions of gram negative aerobic bacilli?
Large (coliforms)
Small
Reverse
Mycobacterium tuberculosis
What causes tuberculosis?
What type of organism is salmonella?
Gut pathogen Coliform
Reverse
Coliform - large gram negative aerobic bacilli
What type of organism is E.Coli?
Reverse
Obligate intracellular bacteria
What type of bacteria is chlamydia?
What type of bacteria is chlamydia?
Obligate intracellular bacteria
Reverse
- Skin rash
- Systemic illness - cardiac or neurological and musculoskeletal symptoms
- Chronic disease - skin, nervous system or joint abnormalities
What are the stages of lymes disease?
Reverse
Present from birth
Define congenital
Reverse
Enterocollitis, with or without bloody diarrhoea
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What does salmonella cause?
Give an example of a spirochaetes
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Treponem pallidum - syphilis
Borrelia burgdorferi - lymes disease
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What does Moraxella Catarrhalis cause?
Respiratory tract infections
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Reverse
Helicobacter pylori - natural habitat is human stomach - damages mucosa and causes ulcers
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Name a microaerophilic spiral bacilli
What are the virulence mechanisms of Escherichia coli?
pili, capsule, endotoxin and exotoxins produced
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Reverse
Lactose fermentation
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What is the test for gram negative bacilli?
What does microaerophilic mean?
Requires little free oxygen
Reverse
Strict aerobic bacilli water and soil organisms
Contaminates medical equipment
Hospital acquired cause of sepsis: pneumonia, UTI Respiratory infection in cystic fibrosis
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What type of organisms is pseudomonas?
Reverse
Fever and constipation
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What does typhoid cause?
What are the important anaerobes? (BACILLI)
Bacteriodes Fragilis - normal colonic flora
Causes intra-abdominal abscess
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Define congenital
Present from birth
What are the gram negative bacilli other than coliforms?
Bordetella pertusis - whooping cough
Haemophilus infuenzae - cocco bacilli (mixed appearance) respiratory tract infection - capsulate form formerly an important cause of meningitis
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What is meant by miscellaneous bacteria
Can’t be stained with gram stains
Can’t be cultured under standard methods Mycobacterium Spirochaetes Chlamydia
Reverse
Respiratory tract infections
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What does Moraxella Catarrhalis cause?
Reverse
Salmonella typhi
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What is the cause of typhoid fever?
What is the test for gram negative bacilli?
Lactose fermentation
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Reverse
Campylobacter - commonest cause of bacterial diarrhoea in the UK
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Name a curved microaerophilic gram negative bacilli
Name a curved microaerophilic gram negative bacilli
Campylobacter - commonest cause of bacterial diarrhoea in the UK
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Reverse
Chlamydophila pneumoniae
Chlamydophila psittaci - contact with birds
What are the strains of chlamydia that cause respiratory infection?
How is diagnosis of chlamydia achieved?
Nucleic acids amplification tests
What are the stages of lymes disease?
- Skin rash
- Systemic illness - cardiac or neurological and musculoskeletal symptoms
- Chronic disease - skin, nervous system or joint abnormalities
What are the forms of Neisseria spp that are of clinical significance?
Neisseria Meningitidis - meningitis and septicaemia
Neisseria ghonorrhoeae - urethritis in men - pelvic inflammatory disease
What are the stages of syphilis?
Primary - Non-painful skin legions
Secondary - Systemic illness and rash
Latent - symptomatic episodes may occur
Tertiary - central nervous system Congenital - stillbirth, neonatal death or disease
What type of bacteria are Neisseria spp and Moraxella catarrhalis?
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Aerobic gram negative cocci
Does E Coli ferment lactose?
Yes
What is used to detect spirochaetes?
Dark ground microscopy or immunofluorescence - Often diagnosed by serology
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Reverse
Mycobacterium species
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What is the ZN stain used for?
What is the cause of typhoid fever?
Salmonella typhi
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What other commensals of the gut exist? (apart from E.Coli)
Klebsiella - UTI and pneumonia
Proteus spp - UTI
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Reverse
Bordetella pertusis - whooping cough
Haemophilus infuenzae - cocco bacilli (mixed appearance) respiratory tract infection - capsulate form formerly an important cause of meningitis
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What are the gram negative bacilli other than coliforms?
Name an oral anaerobe
Prevotella - cause of dental abscess (pus that forms in the teeth and gums), aspiration pneumonia, human and animal bite infections.
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Name another gut pathogen that isn’t salmonella or E.Coli
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Shigella - diarrhoea, dysentery
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Reverse
Chlamydia trachomatis - trachoma (tropical eye infections) Can lead to pelvic inflammatory disease and infertility
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What strain of chlamydia is responsible for the Ophthalmic and genital tract infection?
Reverse
Enterobacteriaceae Inhabitants of the gut
What family do Coliforms belong in?
What is the infection usually associated with Ecoli?
Urinary tract infection
Enterotoxogenic E.Coli - commonest cause of travellers diarrhoea
Enterohaemorrhagic E.coli - Bloody diarrhoea Haemolytic uraemic syndrome
Reverse
Dark ground microscopy or immunofluorescence - Often diagnosed by serology
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What is used to detect spirochaetes?
Reverse
pili, capsule, endotoxin and exotoxins produced
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What are the virulence mechanisms of Escherichia coli?
Reverse
Requires little free oxygen
What does microaerophilic mean?
Reverse
Shigella - diarrhoea, dysentery
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Name another gut pathogen that isn’t salmonella or E.Coli
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Reverse
Nucleic acids amplification tests
How is diagnosis of chlamydia achieved?