significant pest status that fleas have achieved is largely attributable
to their ' biting '
(piercing and sucking) habit, which may cause mild to severe irritation
or serve to transmit disease.
Where a flea infestation is toublesome in domestic resdences, most
flea bites occur around the ankles and lower legs. Great variations
in the degree if irritation exist between individuals. The irritation,
which can persist for days, is due to the injection of salvia, which
acts as an anticoagulant.
Typically a cluster of bites occur, and these usually develop into
small red spots with little or no swelling.