BACKGROUND
INFORMATION:
Amblyomma
americanum
GENUS
|
Amblyomma
|
| SPECIES |
americanum |
| LOCATION |
Central and south America |
| LIFE
CYCLE |
Three
host tick |
| |
Egg
to Adult lasts 10-14 weeks |
| MATING
HABIT |
Females
lay up to 20000 eggs each time |
| FEEDING
HABIT |
Bite
causes intense irritation |
| |
Risk
of secondary bacterial infection |
| |
and
entry of screw-worm maggots |
| |
Blood
loss in infested areas |
| |
Causes
tick paralysis |
| HOSTS
|
Domestic
mammals: cattle, horses,
|
| |
goats,
sheep, deer,cats and dogs |
| |
May
target poultry |
| |
High
infestation in cattle pastures |
| |
All
stages attack humans |
| DISEASES
|
Francisella
tularensis (tularemia), |
| |
possibly
Coxiella burnetii (Q fever) |
| REFERENCES |
BAKER
1999 |
Amblyomma
variegatum
GENUS
|
Amblyomma
|
| SPECIES |
variegatum |
| LOCATION |
African
continent, Madagascar, |
|
Mauritius
up to west Indies |
| LIFE
CYCLE |
Three
host tick |
| HOSTS
|
Primarily
cattle parasites, but they will
|
| |
also
attach other mammals |
|
Rarely
target man |
| DISEASES
|
Cowdria
ruminantium (heartwater, cowdriosis), |
| |
Coxiella
burnetii (Q fever), Rickettsia conorii |
| |
(boutonneuse
fever), Thogoto (THO), |
| |
Dugbe
(DUG), Theileria mutans, T. velifera, |
| |
Dermatophilis
congolensis (dermatophilosis) |
| REFERENCES |
BAKER
1999 |
Amblyomma hebraeum
GENUS
|
Amblyomma
|
| SPECIES |
hebraeum |
| LOCATION |
South
Africa and north to Tanzania |
| LIFE
CYCLE |
Three
host tick |
| MATING
HABIT |
Females
lay 1000-8000 eggs each time |
| HOSTS
|
Primarily
cattle parasites, but they
|
| |
will
also attach other mammals |
|
Rarely
target man |
| DISEASES
|
Cowdria
ruminantium (heartwater, cowdriosis), |
| |
Rickettsia
conorii (boutonneuse fever) |
| REFERENCES |
BAKER
1999, SOULSBY 1982 |
|
