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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 ]
The most infamous flea-to-human transmitted disease is the bubonic plague, which was caused by the bacterium Yersinia pestis. The plague, fevers, tularemia: The diseases fleas can carry and how to ...
Chiggers, a type of small mite, typically leave clusters of bites that are often very itchy. In many cases, chigger bites appear as small, red and itchy bumps. Sometimes, they can look like tiny ...
By stage 2 (days 1–2), penetration is complete and the flea has burrowed most of its body into the skin. Only the anus, the copulatory organs, and four rear air holes in fleas called stigmata remain on the outside of the epidermis. The anus will excrete feces that is thought to attract male fleas for mating, described in a later section.
Tungiasis is an inflammatory skin disease caused by infection with the female ectoparasitic Tunga penetrans, a flea also known as the chigoe, chigo, chigoe flea, chigo flea, jigger, nigua, sand flea, or burrowing flea (and not to be confused with the chigger, a different arthropod).
Chiggers are tiny, only about 1/100 of a millimeter in size and only bite people when they’re in the larva stage. (Here’s how you can tell the difference between a chigger bite and a mosquito ...
Dog fleas had not been found in Virginia in more than 70 years, and may not even occur in the US, so a flea found on a dog in the United States is likely a cat flea (Ctenocephalides felis). [31] [32] One theory of human hairlessness is that the loss of hair helped humans to reduce their burden of fleas and other ectoparasites. [33]
Fleas (Siphonaptera) such as Echidnophaga gallinacea, range from 2–6 millimetres in length and have bodies which are flattened laterally or appear compressed horizontally when viewed from above. [ 9 ] [ 12 ] The flea's body is designed to easily travel through hairs or feathers, allowing free movement throughout the host's body.