Leptospira Flashcards
1
Q
characteristics of leptospira
A
- level 2
- has 2 chromosomes
- hard to culture
- persists in renal tubules
- water-associated, does not survive desecration well
2
Q
virulence factors of leptospira
A
invades moist/softened tissue/skin, mucous membranes, or by ingestion
- adhesions
- heme oxygenase
- flagella
3
Q
Leptospira Harjo
A
host: cattle sub-clinical
milk-drop syndrome, abortion, hemoglobinuria, icterus
can be spread in urine for life
4
Q
leptospira Pomona pigs
A
subclinical
- mastitis, infertility, abortion, fever, icterus
- high mortality
5
Q
dogs
A
host: younger dogs more affected
pyrexia, acute haemorrhagic disease, acute renal failure, infertility, abortions, icterus
6
Q
horses
A
recurrent uveitis, abortion, icterus
7
Q
Leptospira Pomona
A
host: cattle
acute infections
fever, anorexia, lethargy, hemolytic anemia, intravascular hemolysis, petechiation
8
Q
how to treat leptospira
A
depends on serovar
- antimicrobials (streptomycin, doxycycline)
- supportive care
- vaccination
- culling when possible
- interruption of transmission
