tag:blogger.com,1999:blog-188156534013912996Sun, 06 Jul 2025 06:24:16 +0000mcqsenterobacteriaceae characteristicsmicrobiologyaiims microbiology mcqs from past papersfacultative anaerobes mcqsfungi mcqsmicrobiology mcqsAcute EpiglottitisBorrelia BurgdoferiCMVChancroidE.coli diagnosisEBVGlutamic acidH.InfluenzaeHHV-1KSHVNagler reactionPapavovirusPaul Bannel TestProzone PhenomenonRabies VirusRunyon classificationSchuffner's dotsVR mediumVZVaeromonas featuresaiims june 1999 microbiology mcqsaiims november 2008 200 questionsaiims november 2008 microbiology mcqsaiims november 2008 paperaiims past papers mcqsalpha hemolytic coccialpha toxin of clostridiumathletes footbacillus anthraxbacteria causing diseases in humans listbacteria mcqsbacteriocinsbacteriophage reproductionbeta hemolytic coccicandida albicans identificationcandida dubliniensiscandida mcqscapnophilic organismschlamydial diseasesclassification of gram positive coccicoliformsconstituents of macconkey agardermatomycosesdiagnosis of food poisoningdiene's phenomenondienes linedifferential diagnosis of food poisoningdifferentiating different clostridium speciesdimorphic fungi examplesdiseases caused by chlamydia pneumoniaediseases caused by chlamydia psittacidiseases caused by chlamydia trachomatise coli mcqsemb agaremb stainenterovirus 70eosin methylene blue agareosin methylene blue stainerwinia genus characteristicsescherichia coli characteristics and diseasesescherichia coli mcqsfacultatice anaerobes part 1facultatice anaerobes part 3facultatice anaerobes part 4facultative anaerobesfacultative anaerobes part 2fungal identification testsgamma hemolytic coccigerm tube testgram negative bacilligram positive bacilli mcqsgram positive coccigram positive micro-organisms classificationhaemophilus ducreyihaemophilus genus characteristicshaemophilus suishemophilus influenzaherpesviridae classificationhiv mcqshuman herpes viruses classificationidentification of clostridium perfringensincubation periods of organisms causing food poisoninginfectious mononucleosisjames dotsjock itchkaposi sarcomaklebsiella genus diseases and characteristicslactose fermenterslactose fermenters diagnosislecithinaselist of families of viruses affecting humansloa loalouis pasteurlysogenic bacterialysogenic cycle of bacteriumlytic cycle of bacteriummac conkey agarmajor categories and groups of bacteria causing diseases in manmalaria blood smearsmalaria diagnosismalasezzia furfurmedical virology mcqsmeningitis mcqsmicrobiological identification of candida albicansmicrobiology basicsmicrobiology basics mcqsnagler's reactionnon-lactose fermentersnon-lactose fermenters diagnosisnonchromogenic mycobacteriaopportunistic infections in aids mcqsoptochin sensitive cocciorganisms causing food poisoningparacolonspasteurella genus characteristicspasteurella multocidapasteurellaceae characteristicspasteurellaceae pathogenecitypathologyphotobacterium characteristicsphotochromogensplasmodium ovaleplasmodium vivaxproteus genus featuresproteus mcqsproteus mirabilisproteus species differentiationproteus strains differentiationproticinesrapid growers nontuberculous mycobacteriared yellow dots in erythrocytesretinitisrickettsia mcqsring wormsroseola infantumroseolo virusrunyon 1 organismssalmonella characteristics and infectionsscotochromogenssereny testserotypes of shigellaserratia charactersshigella boydiishigella classification based on mannitol fermentationshigella dystenteriaeshigella features and infectionsshigella flexnerishigella mcqssixth diseaseslow lactose fermentersslowly growing nontuberculous mycobacteriasorbitol-macconkey agarswarming growth of proteustinea capitis mcqstinea cruris mcqstinea mcqstinea versicolor mcqstyphoid mcqsureasevaricella zostervibrio choleravibrio cholera characteristicsvibrionaceae characteristicsvibrionaceae mcqsvirus families pathogenic for humansviruses affecting humans listzygomyceteshttp://ourmicrobiology.blogspot.com/noreply@blogger.com (Unknown)Blogger29125en-usnounauthorised copying and publishing of any material from this blog is strictly prohibitedmedical,microbiology,multiple,choice,questions,microbiology,parasitology,virology,bacteriology,mcqsmedical microbiology multiple choice questions microbiology parasitology virology bacteriology mcqsmicrobiology mcqsdoctorprashanthparigela@gmail.comdoctortag:blogger.com,1999:blog-188156534013912996.post-7551688406618080716Mon, 01 Mar 2010 09:39:00 +00002010-04-06T02:28:16.929-07:00serotypes of shigellashigella boydiishigella classification based on mannitol fermentationshigella dystenteriaeshigella flexnerishigella mcqshttp://ourmicrobiology.blogspot.com/2010/03/29-shigella-classification.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-7770707010491223927Mon, 01 Mar 2010 09:07:00 +00002010-03-01T01:10:29.970-08:00alpha hemolytic coccibeta hemolytic cocciclassification of gram positive coccigamma hemolytic coccigram positive micro-organisms classificationoptochin sensitive cocci http://ourmicrobiology.blogspot.com/2010/03/28-gram-positive-micro-organisms.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-918955819633396834Wed, 24 Feb 2010 10:49:00 +00002010-02-28T07:23:21.978-08:00candida mcqsdimorphic fungi examplesfungi mcqszygomycetes*Fungus grows in two basic forms i.e yeasts and molds - Mold form : growth in mold form occurs by production of multicellular filamentous colonies. These colonies consists of branching cylindric tubules called hyphae. The mass of intertwined hyphae that accumulates during active growth is a mycelium. Most hyphal cells are separated by septas but one class of medically important molds, the http://ourmicrobiology.blogspot.com/2010/02/27-dimorphic-fungi.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-450822607905603434Thu, 28 Jan 2010 21:15:00 +00002010-02-23T08:20:50.698-08:00chlamydial diseasesdiseases caused by chlamydia pneumoniaediseases caused by chlamydia psittacidiseases caused by chlamydia trachomatishttp://ourmicrobiology.blogspot.com/2010/01/26-chlamydial-diseases.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-2590970708380610119Tue, 01 Dec 2009 08:48:00 +00002009-12-01T00:48:25.207-08:00E.coli diagnosisemb agaremb staineosin methylene blue agareosin methylene blue stainlactose fermenters diagnosisnon-lactose fermenters diagnosis- Eosin methylene blue (EMB) is a selective stain for Gram-negative bacteria. - It is a blend of two stains, eosin and methylene blue in the ratio of 6:1. - A common application of this stain is in the preparation of EMB agar, a differential microbiological medium, which inhibits the growth of Gram-positive bacteria and provides a color indicator distinguishing between organisms that ferment http://ourmicrobiology.blogspot.com/2009/12/25-emb-stain-emb-agar-eosin-methylene.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-2848058117748955129Sun, 01 Nov 2009 11:44:00 +00002009-11-01T03:44:53.962-08:00bacteriophage reproductionlysogenic bacterialysogenic cycle of bacteriumlytic cycle of bacterium http://ourmicrobiology.blogspot.com/2009/11/24-lytic-cycle-and-lysogenic-cycle.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-4168643214462292976Sun, 01 Nov 2009 11:11:00 +00002009-11-01T03:12:56.718-08:00diagnosis of food poisoningdifferential diagnosis of food poisoningenterobacteriaceae characteristicsincubation periods of organisms causing food poisoningorganisms causing food poisoningShort incubation (ie, within 1 d, usually less than16 h) Chemical causes (ultrashort incubation): The onset of nausea, vomiting, and cramps within 1-2 hours is observed in poisonings involving metal, fish-associated toxins (eg, scombroid, ciguatera), shellfish-associated toxins, monosodium glutamate, or mushrooms. The toxic agent in shellfish-related and ciguatera-related disease is derived from http://ourmicrobiology.blogspot.com/2009/11/food-poisoning-diagnosis.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-4334873263731254029Thu, 22 Oct 2009 17:12:00 +00002012-02-15T00:56:15.305-08:00nonchromogenic mycobacteriaphotochromogensrapid growers nontuberculous mycobacteriarunyon 1 organismsRunyon classificationscotochromogensslowly growing nontuberculous mycobacteria The Runyon classification of nontuberculous mycobacteria based on the rate of growth, production of yellow pigment and whether this pigment was produced in the dark or only after exposure to light. It was introduced by Ernest Runyon in 1959. On these bases, the nontuberculous mycobacteria are divided into four groups: SLOWLY GROWING MYCOBACTERIA : The first three groups are classified as "http://ourmicrobiology.blogspot.com/2009/10/22-runyon-classification-of.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-6017739751986864318Thu, 22 Oct 2009 10:34:00 +00002009-10-22T03:36:21.186-07:00constituents of macconkey agarlactose fermentersmac conkey agarnon-lactose fermentersslow lactose fermenterssorbitol-macconkey agar THE FIGURE ABOVE SHOWS LACTOSE FERMENTERS (TO THE LEFT) AND NON-LACTOSE FERMENTERS (TO THE RIGHT) ON MACCONKEY AGAR. MacConkey (also McConkey) agar is a (differential) culture medium designed to grow Gram-negative bacteria and stain them for lactose fermentation. It contains bile salts (to inhibit most Gram-positive bacteria, except Enterococcus and some species of Staphylococcus), crystal http://ourmicrobiology.blogspot.com/2009/10/21-macconkey-agar.html3prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-5275753024588652426Thu, 22 Oct 2009 09:46:00 +00002009-10-22T02:46:12.758-07:00alpha toxin of clostridiumdifferentiating different clostridium speciesidentification of clostridium perfringenslecithinasenagler's reaction At least 12 different toxins have been identified in strains of Cl. perfringens. One of these is the alpha-toxin, a lecithinase that hydrolyses the phospholipid lecithin (a component of cell membranes) to a diglyceride and phosphorylcholine. The activity of the alpha-toxin can be demonstrated by growth on agar containing egg yolk (as a source of lecithin): an opaque zone representing http://ourmicrobiology.blogspot.com/2009/10/20-naglers-reaction.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-7793761388426799266Thu, 22 Oct 2009 08:36:00 +00002009-10-22T01:36:32.228-07:00james dotsmalaria blood smearsmalaria diagnosisplasmodium ovaleplasmodium vivaxred yellow dots in erythrocytesSchuffner's dots Fine, round, uniform red or red-yellow dot's (as coloured with Romanovsky stains) characteristically observed in erythrocytes infected with Plasmodium vivax and P. Ovale, but not ordinarily found in P. Malariae and P. Falciparum infections.http://ourmicrobiology.blogspot.com/2009/10/19-schuffners-dots.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-8934392749729568565Tue, 06 Oct 2009 08:11:00 +00002009-10-06T01:11:17.984-07:00bacteria causing diseases in humans listbacteria mcqsmajor categories and groups of bacteria causing diseases in man I. Gram-negative eubacteria that have cell walls &nbsp; &nbsp;&nbsp; Group 1: The spirochetes Treponema Borrelia Leptospira &nbsp;&nbsp;Group 2: Aerobic/microaerophilic, motile helical/vibroid gram-negative bacteria Campylobacter Helicobacter Spirillum &nbsp;&nbsp;Group 3: Nonmotile (or rarely motile) curved bacteria None &nbsp;&nbsp;Group 4: Gram-negative aerobic/microaerophilic http://ourmicrobiology.blogspot.com/2009/10/18-bacteria-that-cause-disease-in.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-1817415269031522275Fri, 24 Jul 2009 16:32:00 +00002009-07-24T09:32:22.972-07:00candida albicans identificationcandida dubliniensisfungal identification testsgerm tube testmicrobiological identification of candida albicans The yeast is incubated in horse serum at 37oC for 2 hours and the cells examined microscopically. Candida albicans, and the rarer oral pathogen C. dubliniensis, are the only species of the genus Candida that produce a short germ tube under these conditions as seen in the figure. C. albicans represents 80% of all clinical isolates. Other species of the genus Candida are germ tube-negative and http://ourmicrobiology.blogspot.com/2009/07/17-germ-tube-test.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-937332092608719864Sun, 19 Apr 2009 07:53:00 +00002009-04-19T00:55:52.960-07:00human herpes viruses classificationlist of families of viruses affecting humansmedical virology mcqsvirus families pathogenic for humansviruses affecting humans list Virus Families Pathogenic for Humans Family Representative Viruses Type of RNA/DNA Lipid Envelope RNA Viruses Picornaviridae PoliovirusCoxsackievirusEchovirusEnterovirusRhinovirusHepatitis A virus (+) RNA No Caliciviridae Norwalk agentHepatitis E virus (+) RNA No Togaviridae http://ourmicrobiology.blogspot.com/2009/04/16-pathogenic-virus-families-affecting.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-4165039798035873957Sun, 05 Apr 2009 11:34:00 +00002009-04-05T04:36:00.145-07:00haemophilus ducreyihaemophilus genus characteristicshaemophilus suishemophilus influenzapasteurella genus characteristicspasteurella multocidapasteurellaceae characteristicsPASTEURELLACEAE :&nbsp; • Pasteurella o Pathogen of domestic animals (septacemia = cattle; fowl cholera = chickens) o P. multocida transmitted to humans by dog / cat bites. o Nutritionally fastidious; requires complex media for growth in the laboratory • Haemophilus: o Common inhabitants of upper respiratory tract mucous membrane, mouth, vagina, GI. o Requires X factor (unknown component http://ourmicrobiology.blogspot.com/2009/04/15-facultative-anaerobes-part-5.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-2892210679266457380Sun, 05 Apr 2009 11:30:00 +00002009-04-05T04:36:54.028-07:00aeromonas featuresfacultatice anaerobes part 4photobacterium characteristicsvibrio cholera characteristicsvibrionaceae characteristicsVIBRIONACEAE :&nbsp; • Curved to comma shaped • Polarly flagellated • Facultative anaerobes o Aerobic &amp; therefore catalase &amp; oxidase +ve (similar to aerobic Pseudomonads) o Fermenters ie anaerobic • Widespread distribution (fresh water, sea water) &amp; human &amp; animal intestinal tracts); not indicators of fecal pollution. • 3 genera (Vibrio, Aeromonas, Photobacterium) o Vibrio http://ourmicrobiology.blogspot.com/2009/04/14-facultative-anaerobes-part-4.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-8129618662523511406Sun, 05 Apr 2009 11:27:00 +00002009-04-05T04:37:47.318-07:00erwinia genus characteristicsescherichia coli characteristics and diseasesfacultatice anaerobes part 3klebsiella genus diseases and characteristicsproteus genus featuresserratia characters• Escherichia : o Most common inhabitants of intestinal tracts. o Food &amp; water presence indicates fecal contamination; indicator bacterium o Endogenous spread (septacemia, urinary tract infections, meningitis) or food-water borne transmission (gastroenteritis, travellers diarrhea) o Antigenic composition complex: 170, 57 H and several K antigens (epidemiological &amp; specific serotypes http://ourmicrobiology.blogspot.com/2009/04/13-facultative-anaerobes-part-3.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-7164558121810309812Sun, 05 Apr 2009 11:22:00 +00002009-04-05T04:37:28.222-07:00enterobacteriaceae characteristicsfacultative anaerobes mcqsfacultative anaerobes part 2salmonella characteristics and infectionsshigella features and infections • Salmonella : o 2000 serotypes based on H (flagella protein), O (outer membrane protein) &amp; K (Capsular protein) o Antibodies obtained commercially for serotyping using Kauffmann-White scheme. o Some Salmonella serotypes are host specific (humans= S. typhi S. paratyphi; animals (S. cholerae-suis but cause severe disease if transmitted to humans) &amp; some others not host specific (affecthttp://ourmicrobiology.blogspot.com/2009/04/12-facultative-anaerobes-part-2.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-1892572512184337476Sun, 05 Apr 2009 11:18:00 +00002009-04-05T04:36:40.447-07:00enterobacteriaceae characteristicsescherichia coli mcqsfacultatice anaerobes part 1facultative anaerobes mcqspasteurellaceae pathogenecityvibrionaceae mcqs• Produce acid &amp; gas anaerobically • Medically very important • 3 families: o ENTEROBACTERIACEAE (peritrichous) o VIBRIONACEAE (polar) o PASTEURELLACEAE (none) ________________________________________ &nbsp; ENTEROBACTERIACEAE :&nbsp; General comments -&nbsp; &nbsp; • Most important heterogenous collection of medically significant bacteria (27genera &amp; 110 sp) &nbsp; • Ubiquitous- soil, http://ourmicrobiology.blogspot.com/2009/04/11-facultative-anaerobes-part-1.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-297258821152016125Mon, 16 Mar 2009 10:07:00 +00002009-03-16T03:10:09.780-07:00aiims june 1999 microbiology mcqsaiims microbiology mcqs from past paperse coli mcqshiv mcqsmeningitis mcqsopportunistic infections in aids mcqsrickettsia mcqstyphoid mcqs1q: which of the following is not seen in HIV patient with CD4 count less than 100 per microlitre , who has not productive cough ?a. mycobacterium tuberculosisb. pneumocystis cariniic. mycoplasma pneumoniaed. cryptococcal infection answer c. mycoplasma pneumoniae 2q: risk of pneumococcal meningitis is seen in ?a. post splenectomy patientb. patient undergone neurosurgical interventionc. patienthttp://ourmicrobiology.blogspot.com/2009/03/10-aiims-june-1999-microbiology-mcqs.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-4207700872115851284Sat, 15 Nov 2008 08:27:00 +00002009-03-12T03:30:24.002-07:00aiims microbiology mcqs from past papersaiims november 2008 200 questionsaiims november 2008 microbiology mcqsaiims november 2008 paperaiims past papers mcqs63. biosaftey precaution grade iii is practiced in all except?  a. human influenza virus b. st louis encephalitis virus c. coxiella burnetti d. mycobacterium tuberculosis   answer: 64. most common species of pseudomonas causing intravenous cathrter related infections? a. p. cepacia b. p.areuginosa c. p.maltiphila d. p.mallei  answer:   65. most sensitive diagnostic test for dengue is?  a. Ig http://ourmicrobiology.blogspot.com/2008/11/9-aiims-november-2008-microbiology-mcqs.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-2037296380220314541Mon, 27 Oct 2008 17:43:00 +00002008-10-27T11:33:59.146-07:00athletes footdermatomycosesfungi mcqsjock itchmalasezzia furfurmicrobiology mcqsring wormstinea capitis mcqstinea cruris mcqstinea mcqstinea versicolor mcqs <!--[if gte mso 9]> Normal 0 MicrosoftInternetExplorer4 <![endif]--> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; http://ourmicrobiology.blogspot.com/2008/10/8-dermatomycoses.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-693806588009440374Wed, 16 Jul 2008 10:46:00 +00002009-01-18T08:59:21.733-08:00capnophilic organismscoliformsfacultative anaerobesgram negative bacilligram positive bacilli mcqsgram positive coccimicrobiology basicsmicrobiology basics mcqsparacolons1. Name some Gram positive cocci.- Staphylococcus spp, Streptococcus spp, Micrococcus spp and Enterococcus spp.2. Name some Gram positive bacilli.- Clostridium spp, Corynebacterium diphtheriae, Bacillus spp, Listeria sp and Lactobacillus sp.3. Name some Gram negative bacilli.- Escherichia coli, Shigella sp, Klebsiella sp, Pseudomonas sp, Vibrio sp and Haemophilus sp.4. Name some aerobes.- http://ourmicrobiology.blogspot.com/2008/07/7-microbiology-basics-mcqs.html0prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-3821349261436317891Thu, 10 Jul 2008 08:42:00 +00002008-07-10T01:52:41.069-07:00bacteriocinsdiene's phenomenondienes linemicrobiology mcqsproteus mcqsproteus mirabilisproteus species differentiationproteus strains differentiationproticinesswarming growth of proteusProteus is a genus of bacteria in the family of Enterobacteriaceae. Proteus species are famous for their swarming on solid culture media. When different Proteus species swarm towards each other, a line of inhibited growth results where strains meet. This was first observed in 1946 by Dienes and is referred to as the Dienes phenomenon. This line of inhibited growth results from the production of http://ourmicrobiology.blogspot.com/2008/07/6-dienes-phenomenon.html1prashanthparigela@gmail.com (doctor)tag:blogger.com,1999:blog-188156534013912996.post-2504318318759423889Thu, 14 Feb 2008 18:46:00 +00002008-02-14T11:03:21.341-08:00CMVEBVherpesviridae classificationHHV-1infectious mononucleosiskaposi sarcomaKSHVretinitisroseola infantumroseolo virussixth diseasevaricella zosterVZVHuman Herpesvirus (HHV) classification Type Synonym Subfamily Pathophysiology HHV-1 Herpes simplex virus-1 (HSV-1) α (Alpha) Oral and/or genital herpes (predominantly orofacial) HHV-2 Herpes simplex virus-2 (HSV-2) α Oral and/or genital herpes (predominantly genital) HHV-3 Varicella zoster virus(VZV) α Chickenpox and Shingles HHV-4 Ebstein barr virus (EBV), lymphocryptovirus γ (Gamma) http://ourmicrobiology.blogspot.com/2008/02/5-human-herpesvirus-hhv-classification.html0prashanthparigela@gmail.com (doctor)