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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 species is thought to have originated in South America ...
The flea jump is so rapid and forceful that it exceeds the capabilities of muscle, and instead of relying on direct muscle power, fleas store muscle energy in a pad of the elastic protein named resilin before releasing it rapidly (like a human using a bow and arrow). [7]
Tunga penetrans. (Linnaeus, 1758) Tunga penetrans is a species of flea also known as the jigger, jigger flea, chigoe, chigo, chigoe flea, chigo flea, nigua, sand flea, or burrowing flea. It is a parasitic insect found in most tropical and sub-tropical climates. In its parasitic phase it has significant impact on its hosts, which include humans ...
Pulicidae. Subfamily: Pulicinae. Genus: Pulex. Linnaeus, 1758. Pulex is a genus of fleas. It comprises seven species. One is the human flea (P. irritans), and five of the others are confined to the Nearctic and Neotropical realms.
Several flea species carried the bubonic plague, such as Pulex irritans (the human flea), Xenopsylla cheopis, and Ceratophyllus fasciatus. [14] Xenopsylla cheopis was the most effective flea species for transmission. [14] The flea is parasitic on house and field rats and seeks out other prey when its rodent host dies.
The mole crab’s relative, the sand flea, is less than a quarter of an inch long and has pincers like crabs. Also called landhoppers or sandhoppers, they can pinch people sitting in the sand.
Flea medicines need to be used with care because many of them also affect mammals. Pyrethrin based flea treatments meant for dogs can be hazardous to cats. Flea and tick ointment is also hazardous to humans. If the product comes into contact with human skin, it is recommended to wash thoroughly with soap and water. [3]
It is mainly a disease in the fleas (Xenopsylla cheopis) that infested the rats, making the rats themselves the first victims of the plague. Rodent-borne infection in a human occurs when a person is bitten by a flea that has been infected by biting a rodent that itself has been infected by the bite of a flea carrying the disease.
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