Meningococci

125. A bacteriologist using a bacterioscopic test of nasopharynx mucus has revealed Gram-negative cocci that resemble coffee beans and are located in pairs or tetrads. Which microorganism was isolated by the bacteriologist?

A. Acinetobacter calcoaceticus.

B. Hemophilus ifluenzae.

C. Streptococcus pneumoniae.

D.Moraxella lacunata.

E. Neisseria meningitidis.

134. A doctor has diagnosed meningococcal nasopharyngitis of a child with nasopharyngitis. What method of laboratory diagnostics is the most rational for diagnosis confirmation?

A. Serologic.

B. Biological.

C. Bacteriological.

D. Microscopic.

E. Allergic.

135. From a child with cerebrospinal meningitis there was obtained muddy spinal fluid with numerous leukocytes. Which test should be used for express-diagnostics of the disease?

A. Complement fixation test.

B. Agglutination.

C. Immunofluorescence test.

D. Hemagglutination.

E. Neutralization.

* Suddenly young woman has started suffering from high temperature (39 C) and severe headache. At examination rigidity (stiffness) of neck muscles has been revealed. Spinal puncture has been made. There were a lot of neutrophils and Gram-negative diplococci into the smear from cerebrospinal fluid stained by Gram. Which from given bacteria might be cause of this disease?

Neisseria meningitidis

Streptococcus pneumonia

Haemophilus influenza

Staphylococcus aureus

Pseudomonas aeruginosa

* A culture of meningococcus was isolated from the deposit of cerebrospinal fluid. Which serological test should be used for serogroup detection?

RA (agglutination test)

RP (precipitation test)

RPHA (passive hemagglutination test)

RCF (complement fixation test)

Immune lysis test

116. In a kindergarten children and personnel were examined with the purpose of detecting meningococcal carriers. What method of microbiological research should be used?

A. Allergic.

B. Bacteriological.

C. Bacterioscopic.

D. Biological.

E. Serologic.

* In kindergarten a child has been diagnosed meningococcal nasopharyngitis. Which vaccine may be used for current specific prophylaxis of meningococcal infection among children?

Alive attenuated

Chemical

From killed microorganisms

Toxoid (anatoxin)

Combined

Escherichia coli

151. A 7-year-old boy has been diagnosed a cholera-like disease (vomiting, profuse diarrhea). The feces of the patient were inoculated onto Endo medium, and homotypic crimson colonies with metallic sheen have grown. Which microorganism is the most likely to be the causative agent of the disease?

A. Shigella sonnei.

B. Salmonella enteritidis.

C. Yersinia enterocolitica.

D. Escherichia coli, enterotoxigenic type.

E. Vibrio holera.

*An acute enteric infection has developed in a child, 6 months old. Feces has been inoculated of Endo medium to make bacteriological diagnosis. Based onto typical growth of causative agent a doctor made a presumptive conclusion that cause of infection was Escherichia coli. Which type of colonies was revealed onto Endo agar?

Crimson (magenta) with metallic sheen

Large mucous

Small colorless

Pale pink with white edge

“ Creeping” growth

*01*03*04* At bacteriological investigation of feces taken from 4 months’ child with acute enteric infection a lots of red colonies have been grown onto Endo medium. What microorganisms are these?

*Escherichia

Salmonella

Staphylococci

Streptococci

Shigella

*01*02*03* A culture of E.coli with antigen structure O-111 has been isolated from feces of bottle-feeding newborn. Which diagnosis may be made?

*Coli-enteritis

Gastroenteritis

Cholera-like disease

Food-poisoning infection

Dysentery-like disease

*06* Signs of dehydration and bloody diarrhea have been developed fast in a child with acute enteric infection. Pediatrician has suspected coli-enteritis. Which method should be used to diagnose enteric escherichiosis?

*Bacteriological

Biological

Serological

Allergic

Microscopic

*A child with complaints onto general weakness, bloody diarrhea and pain in kidney region has been hospitalized. Body temperature is normal. There are no leucocytes at coproscopy. Indicate, which microorganism could cause such symptoms of disease?

Enteroinvasive E.coli

Enterohemorrhagic E.coli

Enterotoxic E.coli

Enteropathogenic E.coli

Enteroadhesive E.coli

*A pure culture of E.coli has been isolated from feces of ill person. What is from given later does not correspond to characteristics of this species? E.coli is:

Toxigenic in case of lysogenization

Representative of large intestine microbiota

Causative agent of purulent infection

Causative agent of cholera-like disoders

Active component of eubiotics