28 Questions
Which agar is best suited for the growth of Neisseria meningitidis?
Chocolate agar
What is the natural habitat of Neisseria meningitidis?
Human pharynx (nasopharynx)
What is the transmission route of Neisseria meningitidis?
Transmission by droplets of oropharyngeal and respiratory secretions
What is the disease caused by hematogenous dissemination of Neisseria meningitidis called?
Meningococcemia
Which species of Neisseria are rare opportunistic pathogens?
N. sicca, N. mucosa, N. lactamica
What is the differentiation between meningococcus and gonococcus based on?
Biochemical identification
Which antigenic structure of enterobacteria is associated with the surface and capsular polysaccharide?
K antigen
What type of infections are most commonly produced by Enterobacteriaceae?
Urinary tract infections
Which strain of Escherichia coli is responsible for traveler's diarrhea and infant diarrhea?
Enterotoxigenic (ETEC)
What are the etiological agents of bacillary dysentery?
Shigella
Which species of Salmonella is associated with typhoid fever?
S. typhi
What is the main symptom of bubonic plague caused by Yersinia pestis?
Bubo formation
How is typhoid fever typically transmitted?
Fecal-oral transmission
Which antigenic structure of enterobacteria is associated with the flagella?
H antigen
Which type of infections are uncommon in healthy people but can be caused by strict pathogenic strains of Escherichia coli?
Gastrointestinal symptoms
What is the main route of transmission for gastroenteritis?
Fecal-oral transmission
Which serogroups of Neisseria meningitidis are the main causes of disease in Spain?
B, C, Y, W135
At what age does meningitis due to Neisseria meningitidis peak in Spain?
6-12 months
In which months do most cases of meningitis due to Neisseria meningitidis occur in Spain?
December - March
What is the first-line treatment for Neisseria meningitidis bacteremia?
Penicillin G
Which type of vaccine is more efficient and provides a durable response against Neisseria meningitidis serogroup C?
Conjugate
How is Neisseria gonorrhoeae classified based on its morphology?
Gram-negative cocci in pairs
In which type of infections do uterine cervix, urethra, anal portion of the rectum, pharynx, and conjunctiva get affected by Neisseria gonorrhoeae?
Sexually transmitted and perinatal disease
Ecthyma gangrenosum is a typical lesion associated with which infection?
Pseudomonas aeruginosa
Pseudomonas aeruginosa is important in nosocomial infections as an opportunistic pathogen due to:
Natural resistance to many antibiotics
Pseudomonas aeruginosa is intrinsically resistant to many antibiotics due to:
Lack of cellular targets for antibiotics
Pseudomonas aeruginosa infections can lead to septicemia, which is characterized by:
Hypotension and shock
Which antibiotic type is most effective against Pseudomonas aeruginosa in severe infections?
Cephalosporins
Test your knowledge on Gram-negative cocci and rods including Neisseria spp, Pseudomonas aeruginosa, and the Enterobacteriaceae family. This quiz covers the characteristics, species, and pathogenicity of Neisseria genus, particularly Neisseria meningitidis and Neisseria gonorrhoeae.
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