The chigger mite genus Leptotrombidium Nagayo, Miyagawa, Mitamura and Imamura, 1916 is reviewed using literature data. For 340 larval species brief diagnoses, synonymy, data on type hosts and type localities are provided. The genus is divided into species-groups based on morphological evidence enabling easier establishment of group-membership of un-known specimens in the future. Some species gr...

In order to establish the most sensitive and specific method in the detection of Rickettsia tsutsugamushi in Leptotrombidium deliense , mice and patients, a comparative study on DNA extraction, PCR, hybridization and PCR-hybridization was conducted. The results showed that the sensitivity of PCR-hybridization was 10 times higher than that of PCR and 1000 times higher than that of hybridization....

A survey of ticks and other ectoparasites was carried out during a national biodiversity scientific expedition at Gunung Stong Forest Reserve, Kelantan, Malaysia from 23-29 May 2003. A total of 272 animals comprised of 12 species of birds, 21 species of bats, 7 species of rodents and 2 species of insects were examined for ticks and other ectoparasites. From these animals, 5 species in 4 genera ...

BACKGROUND & OBJECTIVES Human cases of scrub typhus are reported every year from Puducherry and adjoining areas in southern India. However, information on the presence of causative agent, Orientia tsutsugamushi, and its vectors is lacking. Hence, the objective of the study was to find out the vector as well as pathogen distribution in rodents and shrews present in the scrub typhus-reported area...

chigger fever, is a mite-transmitted zoonosis caused by Orientia tsutsugamushi. The vector is the larval stage (chigger) of the trombiculid mite (Leptotrombidium deliense and several other Leptotrombidium spp). The mites and the rodents that carry them serve as the major reservoirs1. Scrub typhus is widely prevalent in the ‘tsutsugamushi triangle’ region of the world spanning the Indian subcont...

Monthly collections of rodents were conducted in Phitsanulok Province, central Thailand in 1993 to investigate the role of the mite Blankaartia acuscurellaris as a vector of scrub typhus. Overall, a total of 41 rodents were collected and examined for the presence of the red colored larvae of B. acuscutellaris and yellow larvae of Leptotrombidium deliense and Ascoshoengastia sp. A total of 787 B...

A survey of ticks and other ectoparasites was carried out during a national biodiversity scientific expedition at Ulu Muda Forest Reserve, Kedah, Malaysia from 23-29 March 2003. A total of 161 animals comprising 20 species of birds, 16 species of bats, six species of non-volant small mammals and 12 species of reptiles were examined for ticks and other ectoparasites. From these animals, nine spe...

Field surveys of ectoparasites on rodents and scandents were conducted in four localities of wildlife reserves in Peninsular Malaysia from October 2008 to November 2009. A total of 16 animals comprising 5 species of hosts were caught and examined for ectoparasites. The hosts examined were Maxomys rajah, Maxomys whiteheadi, Leopoldamys sabanus, Lariscus insignis and Tupaia glis. Of these hosts, ...

Scrub typhus is transmitted by the bite of chiggers (larvae) Leptotrombidium deliense and caused bacteria Orientia tsutsugamushi. Common symptoms include fever, headache, lymphadenopathy, black eschar formation, while acute pancreatitis a rare complication. We present case 27-year-old gentleman, who presented with epigastric pain constipation for three weeks, fever four days, vomiting two days....