Important Microbiology Points

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Ascitic tap – E.coli
Peritonitis – E.coli.
Pyogenic peritonitis – Bacteroids.
Puerperal sepsis – Bacteroids.
P.O abdominal and gynaecological infection – Bacteroids.
Abscess – S.Aureus.
Acute osteomyelitis – S.Aureus.
Toxic shock syndrome – S.Aureus.
Wound infection – S.Aureus > Pseudomona.
Hospital acquired pneumonia – S.Aureus.
Septic meningitis – Streptococcus.
Initiation of dental caries – Streptococcus.
Pyogenic lung abscess + Meningitis – Staphylococcus.
Subacute bacterial endocarditis – S.viridians.






Prosthetic valve endocarditis – S.epidermidis.
Cellulitis – S.pyogenes.
Multiple draining sinuses – Actinomyces.
IUCD infection – Actinomycosis.
Trachoma – Chlamydia.
Pelvic inflammatory disease – Chlamydia.
Lymphogranuloma venereum – Chlamydia.
Pseudomembranous colitis – C.Difficile.
Gas gangrene – C.Perfringes / C.Welchii.
Fatal diarrhea – V.Cholrea.
Tubulo ovarian cyst – Gonococcus.
Valvular itching + Pink purulent discharge – Trichomanas vaginilis.
Infection in post liver transplant patient – CMV.
Chorioretinitis in AIDS – CMV.
Bronchogenic carcinoma – CMV.
Herpangia – Coxsakie virus.
Hand foot and mouth disease – Coxsakie virus
Lymphoma in AIDS – EBV.
Burkitt lymphoma – EBV.
Non hodgkin lymphoma – EBV.
Hairy tongue – EBV.
Nasopharyngeal carcinoma – EBV.
Infectious mononucleosis – EBV.
Kaposi sarcoma – HHV8.
Cervical cancer – HPV 16.
Vulval papules – HSV.
Meningo-encephalitis – Echovirus.
Meningitis in AIDS – Cryptococcus neoformans.
Black water fever – Plasmodium falciparum.
Cysticercosis – Taenia solium.
Cyst in liver – Teania echinococcus.
SCC of bladder – Schistosomiasis.
Cholangio carcinoma – Clonorchis Sinensis.
Migratory lesion of foot – Cutaneous larva migrans.
Toxoplasmosis – Cat.

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