17 Questions
What is the optimal temperature range for the growth of Aeromonas species in trypticase soy agar?
20 to 25°C
Which species of Aeromonas is considered the primary etiologic agent for red syndromes in fishes and amphibians?
A. hydrophila
Which of the following is NOT a common reservoir of infection for Aeromonas species?
Blood
What is the primary mode of transmission for Aeromonas infections?
Ingestion of contaminated food or water
Which of the following is a characteristic of the Aeromonas species?
They are gram-negative, short, plump aerobic rods
Which of the following is a preferred culture medium for the isolation and cultivation of Aeromonas?
Rimler-Shotts Medium
What is the recommended treatment for Aeromonas infection in fish?
Oxytetracycline (60-75 mg/kg for 21 days)
Which of the following is a key control and prevention measure for Aeromonas infection in fish?
Obtaining fish and eggs from disease-free sources
Which Francisella species is commonly associated with animal infections?
All of the above
What is the primary mode of transmission for Francisella species that infect animals?
Ingestion of infected prey, feed, and water
Which of the following is a key virulence factor of Aeromonas?
Both adhesins and enterotoxins
What is a characteristic of Actinobacillus colonies?
Are typically non-hemolytic
Which of the following is true about Actinobacillus species' reservoir of infection?
Can be present in both sick and carrier animals
What is a common disease associated with Actinobacillus species?
Porcine pleuropneumonia
Which of the following is a feature of Actinobacillus colonies' growth characteristics?
Exist in both hemolytic and non-hemolytic forms
What is a common mode of transmission for Actinobacillus species infections?
Direct contact with infected animals
Which enzyme is produced by Actinobacillus species related to carbohydrate metabolism?
Urease
Test your knowledge on Aeromonas, a group of Gram-negative facultative anaerobic rods commonly found in aquatic habitats. Learn about the species associated with animal infections, their morphology, staining features, cellular composition, growth characteristics, and reservoir of infection.
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