Medical Definition of Leptotrombidium

1. An important genus of trombiculid mites, formerly considered a subgenus of the genus Trombicula, which includes all of the vectors of scrub typhus (tsutsugamushi disease). Members of Leptotrombidium that serve as vectors of scrub typhus are within the Leptotrombidium deliense group: Leptotrombidium akamushi is the classical vector in Japan; Leptotrombidium deliense is the primary vector, extending from New Guinea, Australia, the Philippines, China, and Southeast Asia to western Pakistan; Leptotrombidium fletcheri is found in Malaysia, New Guinea, and the Philippines. Some eight other species have also been implicated in scrub typhus transmission in more limited areas. Leptotrombidium akamushi, one of two species, the other being Leptotrombidium deliensis (T. Deliensis), implicated in the transmission of Rickettsia tsutsugamushi, agent of tsutsugamushi disease in Japan and elsewhere in the Orient; the larvae of these species are characteristic parasites of rodents, which therefore are reservoirs of human infections, although the mites themselves are also reservoirs, as their rickettsial parasites are transovarially transmitted from generation to generation (a requirement for transmission to humans as only larval mites feed parasitically and then only once in their lifetimes). Synonym: Trombicula akamushi. (05 Mar 2000)



Leptotrombidium Pictures

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Lexicographical Neighbors of Leptotrombidium

Leptinotarsa
Leptinotarsa decemlineata
Leptodactylidae
Leptodactylus
Leptodactylus pentadactylus
Leptoglossus
Leptolithic
Leptopteris
Leptopteris superba
Leptoptilus
Leptoptilus crumeniferus
Leptoptilus dubius
Leptospira
Leptotrichia
Leptotrombidium (current term)
Leptotyphlopidae
Leptotyphlops
Leptotyphlops humilis
Lepus
Lepus americanus
Lepus arcticus
Lepus californicus
Lepus europaeus
Lepus townsendi
Ler
Leri
Leri's pleonosteosis
Leri's sign
Leri-Weill disease

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