Wingless, jumping insects that feed on blood.Where?:
Cat and dog fleas are most commonly found in our homes. They can survive up to a year without feeding. Human fleas are less common in the UK.
Pierce the skin, inject saliva to prevent clotting, and suck up blood.
Once a home is infested, a pesticide that stops them reproducing should be used on carpets and furnishings, and any pets should be treated, too.
Certain rat fleas transmit typhus and bubonic plague.Danger rating:
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