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3 Οκτ 2014 · The disease is transmitted to humans by chiggers of Leptotrombidium spp. and is caused by the bacterium Orientia tsutsugamushi. Noteworthy are the reported cases that suggest other Orientia species as etiological agents of scrub typhus-like disease.
25 Φεβ 2024 · Chiggers are the larvae of the Trombiculidae mite species. Bites from these mite larvae can cause local pruritus and irritation called trombiculiasis or trombiculosis. The reaction is usually mild and self-limited, but the bites can transmit disease or result in bacterial superinfection.
17 Νοε 2022 · Chiggers are the larval stage of Trombiculidae and Leeuwenhoekiidae mites of medical and veterinary importance. Some species in the genus Leptotrombidium and Herpetacarus vector Orientia species, the bacteria that causes scrub typhus disease in humans. Scrub typhus is a life-threatening, febrile disease.
The larval stage of trombiculid mites (Acari: Trombiculidae), known colloquially as chiggers (see Glossary), are the sole confirmed vectors of intracellular bacterial pathogens of the genus Orientia, the causative agents of scrub typhus.
the term “chigger” commonly is used to describe the parasitic larval stage of mites in the genus Eutrombicula. These common mites cause most of the itchy, summertime bites that occur after walking outdoors through grassy or brushy areas. Several species of chiggers occur in Texas, but only two are troublesome. One, Eutrombicula
2 Δεκ 2015 · The larval stages (chiggers) of the genus Leptotrombidium are vectors of Orientia tsutsugamushi, causative agent of scrub typhus. This life-threatening disease is widely endemic in Asian Pacific regions where more than one billion people are at risk of acquiring the infection and around one million new cases are estimated to occur annually.
5 Δεκ 2019 · We show that chigger species richness is influenced by mammalian host status, climatic factors and land use; whereas chigger species and geographic region, although not habitat type, significantly affect the β-diversity of chigger microbiomes.