Microbiology Study Notes PDF

**[Microbiology SLP - 2.4 ]** **[Streptococci ]** - - - - - - - - Group A = streptococcus pyogenes Group B = streptococcus agalactiae - in female genital tract and causes infection of neonates Group C = causes disease in animals Group D = enterococci **Group A = streptococcus...

**[Microbiology SLP - 2.4 ]** **[Streptococci ]** - - - - - - - - Group A = streptococcus pyogenes Group B = streptococcus agalactiae - in female genital tract and causes infection of neonates Group C = causes disease in animals Group D = enterococci **Group A = streptococcus pyogenes** - - Produces - - - - - Pathogenicity - - - - - - - Complications - - - Treatment - - **Group B = streptococcus agalactiae** - - - Causes - - Treatment - - - **Oral streptococci** - - - Types - - - - Can cause infective endocarditis (viridans streptococci) if they enter blood stream (bacteraemia) - **[Staphylococci]** - - - Types - - - - Pathogenicity - - - - Treatment - - - - - - - - - - - Pathogenicity - Treatment - **[Enterococci]** Eg enterococcus faecalis - - - Pathogenicity - Treatment - **[Actinomycetes]** Types - - - - - Actinomyces odontolyticus - causes enamel demineralisation **Actinomyces israelii** - - - Pathogenicity - - - Types - - - Treatment - - - - - - - - - Eg nocardia asteroides **[Clostridia]** - - - - Types - - - - - - - Pathogenicity - - - Treatment of gas gangrene - - - - - - - - Pathogenicity - - - - Treatment - - - - - Treatment - - - **[Bacillus ]** - - - - - - - - - **Bacillus cereus** - - - **[Neisseriaceae]** Types - - - - - - - **Neiserria gonorrhoeae - the gonococcus** - - - - - Pathogenicity of gonococci - - - - Treatment - - **Neisseria meningitidis - the meningococcus** - - Pathogenicity - - - Treatment - - **Commensal species** Types - - - Aerobic → facultative anaerobes → obligate anerobes - - - - - - **[Enterobacteria]** - - - - - - - Pathogenicity - Treatment - - - - - - - **[Bacteroides]** **Bacteroides fragilis** - - - - - - Pathogenicity - - - - - - - Treatment - - - - **[Porphyromonas]** **Porphyromonas gingivalis** - - - - - - - - Pathogenicity - - - - - - - - - - - Red complex = Porphyromonas gingivalis + Tannerella forsythia + Trepinema denticola **Porphyromonas catoniae** is found in healthy gingiva **[Prevotella]** - - **Prevotella spp.** - - - Prevotella nigrescens = in healthy gingiva Prevotella intermedia = perio (orange complex) **[Fusobacterium]** - - - - - Types - - - Pathogenicity - - - - - - Treatment - - **[Spirochaetes]** - - - - - Types - - - **[Leptorichia]** - - - - - **Leptotrichia buccalis** = only member of genus **[Mycobacteria]** - - Types - - - - - - - - - **Mycobacterium tuberculosis** - - - Pathogenicity - - Treatment - - - - - - - - - **Mycobacterium bovis** - - **Mycobacterium leprae** - - - - Pathogenicity - Types - - - - - - Treatment - - - - - **Mycobacteria other than TB** Types - - - - - Pathogenicity - **[Legionella]** Most important is legionella pneumophila - causes atypical pneumonia (common in hospitals) **Legionella pneumophila** - - - Pathogenicity - - - Treatment - - **[Mycoplasmas]** - - - **Mycoplasma pneumoniae** Pathogenicity - - - - - - - - - Treatment - - **Oral mycoplasmas** Types - - -