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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 ...
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 and certain other mammalian species.
A flea can jump 60 times its length in height and 110 times its length in distance, equivalent to a 1.8 m (6 ft) adult human jumping 110 m (361 ft) vertically and 200 m (656 ft) horizontally. Rarely do fleas jump from dog to dog. Most flea infestations come from newly developed fleas from the pet's environment. [6]
From ticks to spiders to bed bugs, here’s what the most common bug bites look like in photos, the symptoms to know, and whether or not they can be dangerous.
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. [1]
tick bites, e.g. Ixodes scapularis. Balantidiasis. Balantidium coli. intestinal mucosa, may become invasive in some patients. stool (diarrhea=ciliated trophozoite; solid stool=large cyst with horseshoe shaped nucleus) ingestion of cyst, zoonotic infection acquired from pigs (feces) Blastocystosis. Blastocystis spp.
Perioral Dermatitis. Perioral dermatitis is a red rash that appears around your mouth and nose and causes red, inflamed, swollen bumps on the lower half of your face, says Dr. Parikh. The rash is ...
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.
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