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There are more than 2,000 species of tiny (0.04 to 0.15 inches), wingless, blood-sucking fleas that live on the body of the host they infest. ... People can be allergic to flea bites.
The human flea (Pulex irritans) – once also called the house flea [1] – is a cosmopolitan flea species that has, in spite of the common name, a wide host spectrum. It is one of six species in the genus Pulex ; the other five are all confined to the Nearctic and Neotropical realms . [ 2 ]
Don't let fleas take over your house. Follow these expert tips on how to get rid of fleas on pets (dogs included!), furniture, bedding and even in your yard.
Without a host to provide a blood meal, a flea's life can be as short as a few days. Under ideal conditions of temperature, food supply, and humidity, adult fleas can live for up to a year and a half. [16] Completely developed adult fleas can live for several months without eating, so long as they do not emerge from their puparia. Optimum ...
Therefore, parasitism by fleas can affect the population of the hosts. [11] Studies in gerbil hosts have found that flea infestation reduced Gerbillus dasyurus body mass and immune defences. [ 11 ] In common vole hosts, it has also been found that flea infestation reduces body mass and immune defences and also induces an iron deficiency. [ 11 ]
Fleas can be drowned by immersion for about 24 hours; they may appear to be dead if immersed for shorter times, but can revive after some hours. [11] Soaps and surfactants can facilitate the death of fleas in bathing. The process of washing the flea (and the pet) removes integumental waxes on the flea's body and it dies from dehydration. [12 ...
Rats can develop the infection, and help spread the infection to other fleas that bite them, and help multiply the number of infected fleas that can then infect humans. Less often, endemic typhus is caused by Rickettsia felis and transmitted by fleas carried by cats or opossums .
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