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micro GI.pptx fir medicine preclinical micobiology
- 1. Micro high yield point 1.Which species of bacteria is responsible for causing dental caries . 2. Most common risk factor for periodontitis . 3. If patient is decribed with coffee grounds in the vomitus, what comes to your mind ? 4. The two dominant virulence factor of H.pylori? 5. The most accurate method for for detecting h..pylori? 6. Biochemically we describe H.pylori …? 7. Lets back to the basic , can you list Flagellar arrangements of common gastro enteritis?
- 2. 8. when it comes to Oxygen requirement E.coli is classified under ? 9. pls compare and contrast all strains of E. coli ? 10. virulence factor of different E.coli strain ( appeared on exam last year). 11.compare and contrast shigella and salmonella as they are very closely related .( to differentiate them baml 2 question appeared ) 12.shigella ( its name resonate with me hhh ) what we need to know abt it . 13.salmonella :- motile unlike shigella , - cause two disease conditions ✓ Typhoid fever = they are essentially parasites of man.- gallbladder is where is . establishes its permanent inection or carrier stage ✓ Gastroenteritis(salmonellosis) involve in food poisoning they are Salmonella Typhimurium, Salmonella Enteritidis, Salmonella Dublin, Salmonella Infantis, and Salmonella Newport.
- 3. 14. Vibrio cholera its diagnosis appeared on exam case ngr , but mentioned “rice-water stool,” which is pathognomic for this . 15. C. diff. (Antimicrobial-Associated) Diarrhea which is because of normal flora disruption which itself is due to antimicrobial overuse question appeared case ngr says he is diagnosed with C.Diff then he took which of the antibiotic most likely ? (read antimicrobial which predispose c.diff) 16.fecal transplantation is also appeared,which is used for Patients who have had recurrent C. diff. diarrhea ( have an idea about it ) 17. which of the following area of the GIT is heavily colonized with bacteriam bilo mato nbra which oral cavity and the colon. 18. Guillain-Barré syndrome (GBS) is complication of what ? Bilo mato nbra , anyway have an idea on campylobacter baleela mood liyamata silamichl. 19. Infection Vs intoxication using compare and contrast and with their causative 20.bacillus cereus ly Fried rice is mentioned in the case and then whats asked is causative agent , which is emetic form of it.
- 4. 21. C.perfringes case ngr is asked which mention gas gangerene ,which of characteristics of this this bacteria. 22. herpesvirus I donts rememeber assuch bizu tiyalke alnbram but HSV-1 and HSV- 2,including their latent site was there. 23. Cowdry type A intranuclear inclusions is pathognomic for herpesvirus. 24. Paramyxoviruses differ from Orthomyxoviruses was present 25. Mumps virus mention its characteristics and said paroritis …. 26.MMR vaccine one qoustion was there .. 27.Viral gastroenteritis ..rotavirus,astrovirus ,adenovirus and norovirus ..bizu tiyake nbra tread thoroughly including its morphology and pathogenesis..one was most common in children and aother was epidemics , e most common cause of foodborne disease outbreaks and so on….. 28. which serotype of adenovirus cause gastroenteritis.. 40,41 and which are hoghly oncogenic …alaa kulli haal viral gastroenteritis badmbi yinababagain and again. 29. The same is true for hepatitis ..superinection baml appeared,serologic profile of hepatitis, also if necessary I recommend vidio
- 5. A piece of guidance Pls don’t be nervous seeing length of the question on his exam some question is half a paper but they are batem simple just read to an end and mostly at the end paragraph you will get what you need . Be there in time to secure a very good connection and setup ur pc or desktop earlyon. best of luck miidhaga A.
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- Streptococcus mutans and Streptococcus sobrinus age ,its especially very common after 45 age and carbohydrate consumption common risk factor aswell H.pylori Vac A ( wich is permeability disrupter) and Cag A (malignantic) Histological examination from endoscopic biopsy but its invasive procedure unlike noninvasive( serological or carbon urea breath test Its oxidase ,catalase and urease positives . Lophotrichous (Bacteria with bunch of flagella at one pole. ) =Helicobacter *Monotrichous(with single polar flagellum)=V. cholarae * Peritrichous(Bacteria with flagella all over their surface)=S. typhi , E. coli
- 8. Its Facultative Anaerobes remember the rest grops …Obligate anaerobes-e.g. Clostridium Facultative aerobe, e.g. Enterobacteriacea. Microaerophilic.. e.g. Campylobacteria Obligate aerobes. e.g. Pseudomonas 9. ETEC, EPEC and EAEC primarily cause a secretory(watery ) diarrhea involving the small intestine whereas EHEC and EIEC primarily involve the large intestine and cause dysentery but DAEC cause persistent watery diarrhea in children. EHEC is shigalla like 10. nonmotile, Facultative anaerobes , Non-lactose fermenters , The infective dose is smaller than salmonellae, except S.Typhi. ,O antigens and biochemicals define four species -S. dysenteriae is the most virulent.-S. flexneri is the leading cause of endemic shigellosis in low-income and middle-income countries (yadaha ngr).-S. sonnei is the leading species in high-income countries.-Shigella boydii: relatively uncommon
- 19. Foodborne intoxication:-s have short incubation periods (minutes to hours) and are characterized by a lack of fever. Causative =Bacillus cereus, Clostridium botulinum , Staphylococcus aureus FOODBORNE INFECTIONS=caused by the entrance of pathogenic microorganisms contaminating food into the body, have long incubation periods and are usually characterized by fever, causative=Listeriosis, Cholera, salmonellosis, typhoid fever, shigellosis, yersiniosis Campylobacteriosis,and Escherichia coli infection