30 Questions
What is the primary route of infection for APEC in poultry?
Inhalation of feces-contaminated dust
Which of the following is a common risk factor for APEC infection in poultry?
Exposure to ammonia and dust in the environment
What is the typical age range for chicks affected by neonatal colibacillosis?
1 week old
What is the term for the severe presentation of neonatal colibacillosis, characterized by a dirty and wet appearance?
Mushy chick
What is the estimated mortality rate for respiratory colibacillosis in poultry?
Up to 20%
What is the term for the inflammatory response in the liver and heart in respiratory colibacillosis?
Both b and a
What is the typical age range of chickens when they are diagnosed with egg yolk peritonitis?
21-80 weeks
What is the serotype of E. coli commonly associated with egg yolk peritonitis?
O166
What is the characteristic lesion found in chickens with swollen head syndrome?
Gelatinous edema
What is the primary causative agent of scabby hip/necrotic dermatitis in poultry?
APEC
What is the outcome of swollen head syndrome in poultry?
Low mortality
What is the sequence of events leading to swollen head syndrome in poultry?
Pneumovirus infection followed by APEC invasion
What is the characteristic of Coligranuloma disease in old birds?
Chronic condition with multiple granulomas in liver, cecum, duodenum, and mesentery
What is the purpose of using XLD agar in culturing Escherichia coli?
To detect H2S production
What is the significance of serotyping methods in Escherichia coli diagnosis?
To identify the strain of E. coli
What is the characteristic of Salmonella reservoir?
Intestinal tract of warm-blooded and cold-blooded animals
What is the clinical presentation of Salmonella infection in animals?
Systemic septicemia, enteritis, abortion, and meningitis
What is the purpose of enzyme-linked immunosorbent assays (ELISA) in Escherichia coli diagnosis?
To detect the presence of E. coli antibodies
Which Salmonella serovar primarily infects humans, causing severe systemic infections?
S. Typhi
What is the primary site of bacterial multiplication in Salmonella infections?
Macrophage monocyte lineage
Which of the following is NOT a virulence factor in Salmonella enterica subsp. enterica?
Type IV secretion systems
Which serovar of Salmonella is associated with poultry?
S. Gallinarum
What is the primary means of transmission for Salmonella infections?
Fecal-oral route and inhalation
Which of the following is a characteristic of non-systemic serovars of Salmonella?
Colonize the GI tract of healthy animals
What is the percentage of Salmonella enterica subsp.enterica that corresponds to subsp.enterica?
60%
Which of the following is NOT a component of Salmonella enterica subsp.enterica?
Cell wall
What is the approximate percentage of Salmonella enterica subsp.enterica that produces disease primarily in one host species?
95%
What is the name of the classification system used for Salmonella enterica subsp.enterica?
Kauffmann and White classification
Approximately what percentage of Salmonella enterica subsp.enterica is associated mainly with one host species?
99%
Which of the following Salmonella serotypes is associated with typhoid fever in humans?
S.Typhi
This quiz covers the clinical manifestations of Avian Pathogenic E. coli (APEC) in poultry, including its strains and zoonotic potential. It's an important topic for those in the poultry industry.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
