Parameter

Description

Value

Source

Size of total bird population

50

Assumed

Size of total tick population

100

Assumed

Susceptible bird population at time t

100

Assumed

Susceptible tick population at time t

100

Assumed

Exposed bird population at time t

80

Assumed

Exposed tick population at time t

80

Assumed

Infectious bird population at time t

80

Assumed

Infectious tick population at time t

80

Assumed

Recovered birds at time t

60

Assumed

The rate an infected adult female tick reproduces

3.68 × 10−4

[7]

The rate at which a tick bites and infects a bird

2 × 10−4

[7]

The rate at which birds are infected through ingested faeces

0.05

[7]

The rate a tick bites a bird and become infected

1.95 × 10−3

[7]

The rate of non-viraemic transmission between co-feeding ticks

3.9 × 10−7

Assumed

Rate of progression from exposed to infectious class among the bird

0.182

[17]

Rate of progression from exposed to infectious class among the tick

0.182

[17]

d

Natural death rate of birds

0.087

[7]

Disease induced death rate of birds

0.2

[7]

Rate of recovery for birds

1.25

[7]

Death rate of tick

0.083

[7]

Effort to reduce the number of exposed birds

0.02

Assumed

Measures the rate of treatment of the infected birds

0.01

Assumed

Effective tick control measure

0.05

Assumed

Per capita birth rate of bird

8.33

[7]

Per capita birth rate of tick

0.167

[7]