General microbiology

D. To study biochemical properties of the causative agent
E. To study virulence of the causative agent
7. 12 year old child has the ulcer disease of stomach. What is the etiology of this disease?
A. Intestinal bacillus B. Helicobacter pylori
C. Salmonella D. Lambliosis E. Influenza
8. A 12-year-old boy has been hospitalized for suspected food poisoning. The fecal samples were inoculated on the Endo agar, which resulted in growth of a large number of colorless colonies. What microorganism is most likely to be EXCLUDED from the list of possible causative agents of the disease?
A. Escherichia coli B. Salmonella enteritidis
C. Proteus vulgaris D. Pseudomonas aeruginosa
E. Yersinia enterocolitica
9. Feces of a child with an acute intestinal infection were inoculated onto Endo medium, which resulted in the growth of numerous raspberry-red colonies with a metallic sheen. It indicates that the colibacillus is the likely causative agent of the disease. What property of the causative agent was used to distinguish it from other intestinal bacteria?
A. Antigenic structure
B. Capsule formation
C. Toxigenicity
D. Oxidase activity
E. Fermentation of lactose


Salmonella
1. Bacteriological examination of a patient with food poisoning required inoculation of a pure culture of bacteria with the following properties: gramnegative movable bacillus that grows in the Endo’s medium in form of colourless colonies. A representative of which species caused this disease?
A. Salmonella B. Shigella C. Yersinia D. Esherichia E. Citrobacter
2. On bacteriological study of rinsing water of the patient with food poisoning, the pure bacterial culture was inoculated with the following properties: gram-negative motile bacillus in the Endo environment grows like achromic colony. Representative of what genus has caused the illness?
A. Yersinia B. Citrobacter C. Salmonella D. Shigella E. Escherichia
3. It was reported an outbreak of food poisoning connected with consumption of pastry that had been stored at a room temperature and had duck eggs as one of the ingredients. What microorganisms might have caused this disease?
A. Salmonella B. Colon bacilli
C. Staphylococci D. Legionella E. Comma bacilli
4. A 33-year-old male patient developed a condition that had a stormy clinical course: chills, fever up to 39^oC, vomiting, epigastric pain, diarrhea with watery smelly feces. 6 hours before, he ate a raw egg, fried potatoes with stewed meat, drank some juice. What pathogen is likely to have caused this condition?
A. Salmonella B. Colibacillus C. Campylobacter
D. Shigella E. Vibrio cholerae
5. A 10 month old boy has been ill for 5 days after consumption of unboiled milk. Body temperature is 38 − 39^oC, there is vomiting, liquid stool. The child is pale and inert. His tongue is covered with white deposition. Heart sounds are muffled. Abdomen is swollen, there is borborygmus in the region of ubbilicus, liver is enlarged by 3 cm. Stool is liquid, dark-green, with admixtures of mucus, 5 times a day. What is the most probable diagnosis?