3,326
edits
Changes
mLine 70:
Line 70: − − *Enzootic Instability − **Low rate of transmission − **Few infected [[Suborder: Metastigmata, ticks|ticks]] − **Infrequent exposure − **Immunity wanes or is completely absent in many individuals − **Low levels of herd immunity − **'''Higher''' incidence of disease − − *Enzootic Stability − **High rate of transmission − **Many infected ticks − **Frequent exposure boosts immunity − **High level of herd immunity − **'''Lower''' incidence of disease Line 103:
Line 88: + + + + + + + + + + + + + + + + + + + + + + + +
→Babesia
**Immunity can wane in the absense of re-infection
**Immunity can wane in the absense of re-infection
**Uninfected cattle remain susceptible
**Uninfected cattle remain susceptible
*Predisposing factors:
*Predisposing factors:
**''B. major'' occurs in South East England but is not pathogenic
**''B. major'' occurs in South East England but is not pathogenic
***Vector is [[Suborder: Metastigmata, ticks#Important Hard Ticks|''Haemaphysalis'']]
***Vector is [[Suborder: Metastigmata, ticks#Important Hard Ticks|''Haemaphysalis'']]
===Enzootic Instability===
*Low rate of transmission
*Few infected [[Suborder: Metastigmata, ticks|ticks]]
*Infrequent exposure
*Immunity wanes or is completely absent in many individuals
*Low levels of herd immunity
*'''Higher''' incidence of disease
===Enzootic Stability===
*High rate of transmission
*Many infected ticks
*Frequent exposure boosts immunity
*High level of herd immunity
*'''Lower''' incidence of disease
==''Theileria''==
==''Theileria''==