Previous year question paper, Study notes of Microbiology

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PNEU MOLOCCUS

• (^) morphology · gram the diplococci (in (^) pair) one^ end^ broad/rounded

flame/lanczolate (^) shaped

• (^) other pointed · capsulated

appear

halo in india^ ink^.

· non motile

· non-sporing

pathogenicity · spneumonial

colonises the human

nasopharynx a^ may^ cause inf of middle (^) ear , (^) paranasal sinuses^ a^ lower

resp

tract (^) by directly resulting in^ pneumonia

* Labar

pneumonia

• only caused^ when^ immunity^ is^ compromised · bacteremia (^) is common during early^ stage ·

Toxemia is due to diffusion of^ capswar

polysaccharide

into blood tismes

Bronchopneumonia-

: almost

always a (^) secondary infection after^ viral^ inf or respiratory

tract

The

damage to (^) respiratory epithelium and^ excessive bronchial secretions caused (^) by primary

inf facilitate the invasion of

spneumonial along^ bronchial tree It is^ frequently an terminal event^ in^ elderly patients

Meningitis- : most (^) serious usually 20 to^ other pneumococcal inf (^) such as pneumonia sinusitis etc untreated (^) cases - >^ fatal fatality rate

• 25 %

Suppurative

Lasions

S-

pneumonial also (^) produce localised suppurative

lesions- otitis^ media

sinusitis

pericarditis

conjuctivits etc.

• (^) Lab diagnosis ① (^) specimen -- sputum blood CSF aspirated fluid ② (^) Microscopy Acute phase

of lobar - the rusty

sputum-^

S. pneumonia in^ large^ - demonstration pneumonia

contains no compared to others^

by gram

Stain