Lab 11- Leptospira

Question 1

Habitat

Answer 1

Infected animals (pathogens)
Environment, water (saprophytes)

Question 2

Morphology

Answer 2

6-20 um helical rods, hooked

Question 3

Staining

Answer 3

Difficult
Unstained
Vago staining
Levaditis silver inpregnation

Question 4

Culture

Answer 4

Aerobic 28-30 degrees 
Nutrients (ffa, inorganic N, vitamins)
Korthof medium 
Animal trial 
Embryonated egg

Question 5

Biochem

Answer 5

FFA
Inorganic N
Fructose 6 phosphate

Question 6

Resistance

Answer 6

Weak

Question 7

Groups

Answer 7

Complex taxonomy
21 species
Pathogen 9 species

Saprophytes 7 species
Intermediate 5 species

Question 8

Species

Answer 8

L. Ichterohaemorrhagiae 
L. Grippotyphosa 
L. Hardjo 
L. Sejroe 
L. Pomona 
L. Tarassovi 
L. Canicola

Question 9

L. Ichterohaemorrhagiae cause ?

Answer 9

Dog + horse= gerneralised disease, fever

Main host: rat
Secondary host: dog, cattle, swine, rodents

Question 10

L. Grippotyphosa cause?

Answer 10

Cattle= fever, haemoglobinuria, abortion

Main host: vole, mouse, hamster
Secondary host: cattle, sheep, goat, pig, horse, dog

Question 11

L. Hardjo cause?

Answer 11

Cattle, sheep= abortion

Main host: cattle, sheep
Secondary host: cattle, sheep

Question 12

L. Sejroe cause?

Answer 12

Cattle = abortion

Main host: mouse
Secondary host: cattle

Question 13

L. Pomona cause?

Answer 13

Pig+cattle= abortion, haemoglobinuria

Main host: pig
Secondary host: cattle, sheep, h9rse, dog, rodents

Question 14

L. Tarassovi cause ?

Answer 14

Pig= abortion

Main host: pig
Second host : carnivores, rodents

Question 15

L. Canicola cause ?

Answer 15

Dog= fever, uraemia

Main host: dog
Second host: swine, rodents