Unit 3- Genital and GI

Question 1

Genital and GI pathogens

Answer 1

Campylobacter, Helicobacter, Arcobacter, and Lawsonia

Question 2

Campylobacter

Answer 2

Gram neg curved rods, motile, non-hemolytic, microaerophilic, oxidase +, urease -, selective media

Question 3

Microaerophilic

Answer 3

Needs low oxygen %

Question 4

Pathogenic Campylobacter

Answer 4

C fetus subsp fetus, C fetus subsp venereales, C jejuni, C coli, Lawsonia intracellularis, C upsaliensis

Question 5

Campylobacter fetus subsp venereales

Answer 5

Venereal transmission, old bulls permanent carriers, placental and fetal infection

Question 6

C fetus subsp venerealis Pathogenesis

Answer 6

Bacteria colonize female reproductive in ascending infection

Question 7

Bovine Genital Campylobacteriosis

Answer 7

C fetus subsp venerealis infection, endometritis, reduced conception rate = repeat breeders

Question 8

C fetus subsp Venerealis Virulence

Answer 8

Proteinaceous micro capsule S layer, serum resistance, antigenic phase variation

Question 9

C fetus subsp venerealis Diagnosis

Answer 9

Microaerophilic culture, fluorescent antibody test, PCR

Question 10

C fetus Immunity

Answer 10

S layer changes to elude antibodies, vaccination not reliable

Question 11

C fetus subsp fetus Disease

Answer 11

Rare disease in cattle causing abortion, abortion in sheep, genital I nfection after bacteremia

Question 12

C fetus subsp fetus

Answer 12

S layer important antigens, inhabits GI, transmitted by ingestion

Question 13

C fetus subsp fetus Lesions

Answer 13

Mid to late term abortion, focal hepatic necrosis, mixed infection with Chlamydia, fibrinous arteritis in fetus, bloody fetal fluid

Question 14

C fetus subsp fetus Immunity

Answer 14

Vaccination based on LPS, S layer antigens, intestinal and systemic antibodies important

Question 15

C fetus subsp fetus Diagnosis

Answer 15

Lesions, selective media, PCR, fluorescent antibody staining of cotyledon impression smears

Question 16

Intestinal Campylobacter

Answer 16

C jejuni, coli, and lari

Question 17

Intestinal Campylobacter Disease

Answer 17

Oral transmission, enteritis, bovine mastitis, sheep abortion, hepatitis in chicken

Question 18

Intestinal Campylobacter Virulence Factors

Answer 18

LOS, enterotoxin, cytotoxins

Question 19

Intestinal Campylobacter Pathogenesis

Answer 19

Bacteria penetrate mucosa and infect enterocytes, motility allows to reach deeper tissues and phagocytes

Question 20

Campylobacter Selective Agar

Answer 20

Blood agar, charcoal selective agar

Question 21

Campylobacter jejuni Diagnosis

Answer 21

Fever, abdominal pain, nausea, bloody feces, Skirrows selective medium, microaerophilic, PCR

Question 22

Campylobacter upsaliensis

Answer 22

Common in pets, cytolethal distending toxin

Question 23

Campylobacter hyointestinalis and mucosalis

Answer 23

Proliferative enteritis and intestinal adenomatosis in pigs

Question 24

Campylobacter Public Health

Answer 24

Fetus, jejuni, and coli present in many animals, highly infectious and oral transmission, enteritis and systemic infection in human

Question 25

Campylobacter Control

Answer 25

Antimicrobials rarely used for farm animal, supportive care, artificial insemination, removal of abortion, hygiene, cull carriers, bacterin vaccines

Question 26

Helicobacter causing gastritis in cats

Answer 26

Helicobacter felis, canis, pylori, and heilmanii

Question 27

Helicobacter causing gastritis in dogs

Answer 27

Helicobacter bilis, felis, canis, salomonis, rappini, heilmanii

Question 28

Helicobacter Gastritis Clinical Signs

Answer 28

Vomiting, abdominal pain, fever, diarrhea, weight loss, malaise

Question 29

Helicobacter causing hepatitis

Answer 29

Helicobacter hepaticus and bilis, hepaticus leads to hepatic neoplasia

Question 30

Helicobacter suis

Answer 30

Gastritis in pigs

Question 31

Arcobacter

Answer 31

Aerotolerant, associated with abortion and mastitis, darting motility, growth in ambient air on Yersinia agar

Question 32

Lawsonia intracellularis

Answer 32

Obligate intracellular in epithelial cells, proliferative intestinal enteropathy, chronic diarrhea

Question 33

Wet Tail Disease

Answer 33

Intestinal enteropathy in pig and hamster caused by Lawsonia intracellularis

Question 34

Lawsonia Disease

Answer 34

Acute hemorrhagic enteropathy and diarrhea, chronic mild diarrhea and reduced growth, loss of villous structure

Question 35

Lawsonia Diagnosis

Answer 35

Pathology, histopathology, fluorescent antibody, PCR