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- Leptotrombidium (/ˌlɛptoʊtrɒmˈbɪdiəm/) is a genus of mites in the family Trombiculidae, that are able to infect humans with scrub typhus (Orientia tsutsugamushi infection) through their bite. The larval form (called chiggers) feeds on rodents, but also occasionally humans and other large mammals. They are related to the harvest mites of the North America and Europe. Originally, rodents were thought to be the main reservoir for O. tsutsugamushi and the mites were merely vectors of infection: that is, the mites only transferred the contagion from the rodents to humans. However, the mites are now known to only feed once in their lifetimes, which means that transmission from rodent to human via the mites is impossible (for it to have been possible, the mite would have to feed at least twice, once on the infected rodent and again on the human who would then be infected). Instead, the bacterium persists in the mites through transovarial transmission, where infected mites transmit the infection to their unborn offspring. Leptotrombidium mites are therefore both vector and reservoir for O. tsutsugamushi. The infection predominantly affects female mites, and does not appear to otherwise harm the mites. (en)
- 鉤恙蟎屬(學名:Leptotrombidium;(/ˌlɛptoʊtrɒmˈbɪdiəm/),又名纤恙螨属,是蛛形綱蜱蟎亞綱蟎形總目恙蟎目恙蟎科之下的一個屬,可透過叮咬人類而令人類感染恙蟲東方體(O. tsutsugamushi)而患上恙蟲病(亦作叢林斑疹傷寒)。鉤恙蟎屬的幼虫主要宿主是啮齿类,但有时也能寄生于人类或其他大型哺乳类动物中。 過往曾以為啮齿类動物是恙蟲東方體的宿主,而恙蟎只是感染的载体,但現時我們知道恙蟎一生只會進食一次,這使病原從啮齿类動物傳播至人類這種假設不可能,因為恙蟎要達成載體的話,需要先後嚙咬鼠隻取得病原、然後再嚙咬人類以將病原傳給人類。所以病菌只可能一開始就已在恙蟎的體內,透過的過程從母體傳染給蟎的蟲卵。所以鉤恙蟎屬物種同時是恙蟲東方體的病原載體及天然宿主。感染幾乎均由雌蟲造成,而且似乎並未有對恙蟎造成傷害。 (zh)
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- 鉤恙蟎屬(學名:Leptotrombidium;(/ˌlɛptoʊtrɒmˈbɪdiəm/),又名纤恙螨属,是蛛形綱蜱蟎亞綱蟎形總目恙蟎目恙蟎科之下的一個屬,可透過叮咬人類而令人類感染恙蟲東方體(O. tsutsugamushi)而患上恙蟲病(亦作叢林斑疹傷寒)。鉤恙蟎屬的幼虫主要宿主是啮齿类,但有时也能寄生于人类或其他大型哺乳类动物中。 過往曾以為啮齿类動物是恙蟲東方體的宿主,而恙蟎只是感染的载体,但現時我們知道恙蟎一生只會進食一次,這使病原從啮齿类動物傳播至人類這種假設不可能,因為恙蟎要達成載體的話,需要先後嚙咬鼠隻取得病原、然後再嚙咬人類以將病原傳給人類。所以病菌只可能一開始就已在恙蟎的體內,透過的過程從母體傳染給蟎的蟲卵。所以鉤恙蟎屬物種同時是恙蟲東方體的病原載體及天然宿主。感染幾乎均由雌蟲造成,而且似乎並未有對恙蟎造成傷害。 (zh)
- Leptotrombidium (/ˌlɛptoʊtrɒmˈbɪdiəm/) is a genus of mites in the family Trombiculidae, that are able to infect humans with scrub typhus (Orientia tsutsugamushi infection) through their bite. The larval form (called chiggers) feeds on rodents, but also occasionally humans and other large mammals. They are related to the harvest mites of the North America and Europe. (en)
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- Leptotrombidium (fr)
- Leptotrombidium (en)
- 鉤恙蟎屬 (zh)
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