General microbiology

A. Bacteriological B. Allergic C. Bacterioscopic D. Serological E. RIA
51. The following spore-forming bacteria can be preserved in soil over a long period of time: clostridia of tetanus, botulism, anaerobic gas infection. Name the way with which these microorganisms get into soil.
A. With feces B. With urine C. With water
D. With industrial waters E. With expectoration
52. A patient consulted a stomatologist about purulent inflammation of his gums. What drug will be the most effective if it is suspected that a causative agent is an anaerobe?
A. Metronidazole B. Gentamicin C.Oxacillin D.Co-trimoxazole E.-
52. In 8 days after a surgery the patient developed tetanus. The surgeon suspects this condition to be caused by suture material contaminated by tetanus agent. The material is delivered to a bacteriological laboratory. What nutrient medium is required for primary inoculation of the suture material?
A. Kitt-Tarozzi medium. B. Endo agar.
C. Sabouraud agar. D. Egg-yolk salt agar. E. Hiss medium
53. A bacteriological laboratory received a sample of dried fish from an outbreak of food poisoning. Inoculation of the sample on Kitt-Tarozzi medium revealed microorganisms resembling tennis racket. These microorganisms are causative agents of the following disease:
A. Botulism. B. Diphtheria. C. Typhoid fever.
D. Salmonellosis. E. Dysentery.
54. A 37-year-old male was admitted to a hospital complaining of abdominal pain, difficulty in swallowing and breathing, constipation, and nausea. He developed respiratory failure and required endotracheal intubation and ventilation. Two days before, the patient consumed dried salted fish bought from an artisanal producer. Laboratory investigation for infectious pathogen was performed using Kitt-Tarozzi’s method. Observation under a bright field microscopy revealed the presence of typical microorganisms with “tennis racket” appearance. Which of the following is the most likely diagnosis?