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Bug of the day - bugguy19
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09-28-2014, 06:46 PM
clinically i think
loa loa( eye worm) ____________ pruritus + no blindness Onchocerca volvulus__________ river blindness + itchy leopard rash
09-29-2014, 08:39 AM
Haemoplilus ( haemoplilus = blood loving)
gram -ve rod pleomorphic no exotpxin need specific factors for growth ( found in the blood) 1/ H.ducreyi require only x factor (hematin) for growth STD painfull chancroid (syphilis is painless chancroid) macrolide OR 3rd generation cephalocporine 2/ H.influezae type B obliquate human parasite respiratory route requre both factor X and factor V attachment pili + igA protease capsule (+ve Quelling test) ENcapsulated H. influenza cause______ meningitis epidemic in un vaccinated (3mo- 2 yrs) acute epiglottitis septic arthritis sepsis (pt with non functioning spleen) pneumonia NON capsulated H. influenza cause______ otitis media sinusitis ttt_____________ 2nd or 3rd generation cephalosporine HIb vaccine
09-29-2014, 08:59 AM
PUNCHSS Kill urease +ve..kleibsella got inside
 Non capsulated -no vaccine so child gets otitis media despite hib vaccine No jetplanes  (
09-30-2014, 12:54 AM
to day is our last group of gram -ve rods the
ENTEROBACTERIACEAE .......... two sub group 1/lactose fermenter _______ ( E.coli , klebsiella ) 2/ non lactose fermenters________ ( motile and producing H2S are salmonella ,proteus ) (non motile and not producing H2S are shigella and yersinia )
10-01-2014, 02:29 PM
E.coli
Gram -ve rod Facultative anaerobe Lactose fermenter Indole +ve B-hemolytic 3 Ag✈✈✈✈✈✈✈ K Ag (capsule ) ,O Ag ( component of LPS ) , H Ag (flagella ) 3 toxin ✈✈✈✈✈✈✈ LT (increase cAMP) , ST (increase cGMP ) ,shiga like toxin (inactivate s60 ribosomal subunit) 4 main infections ✈✈✈✈✈✈✈ 1/UTI .....ttt by fluroquinolone 2/Neonatal meningitis/sepsis (2nd most common cause) ttt by 3rd generation cephalosporin 3/septicemia in hospitalized pt . ttt by fluroquinolone or 3rd generation cephalosporin 4/Gastroentritis...4 main subgroups......ttt rehydration+antibiotic ✈✈✈✈ETEC✈✈✈✈traveler diarrhea... non inflammatory ttt by TMP/SMX ✈✈✈✈EPEC✈✈✈✈ 2nd most common cause of infantile diarrhea ttt by flouroquinolone ✈✈✈✈EIEC✈✈✈✈✈inflammatory diarrhea (blood +pus+fever) ✈✈✈✈EHEC✈✈✈✈0157:H7 non inflammatory (blood ,no pus ,no fever), HUS
10-01-2014, 05:17 PM
Thats nice and includes almost all.May be just one if I could add..#oxidase negative # colonises with green sheen on EMB.thank you for all your efforts
10-02-2014, 12:59 PM
Very important DECLARATION ____________________________
ALL ENTEROBACTERIACEAE are oxidase -ve
10-02-2014, 07:31 PM
Klebsiella species
1/ K.granulomatis_______ gram -ve rod capsule obligate intracellular granuloma inguinale (subcutenous genital nodule + beefy red ulcer that bleed easily) sexual contact, fecal contamination scraping of lesion +gimsa stain shows Donovan bodies TMP/SMX OR tetracycline 2/K.pneumonia_________________ gram -ve rod capsule non motile mucoid colonies lactose fermenting pneumonia in alcholic, ( currant jelly sputum , usually rt upper lobe, cavity formation ) nosocomial infections__ UTI sepsis immunocopromized ttt 3rd generation cephalosporine or ciprofloxacin |
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