Open AccessTransovarial Transmission of Orientia tsutsugamushi in Leptotrombidium palpale (Acari: Trombiculidae)
Author(s) -
Eun Hee Shin,
Jong Yul Roh,
Won Il Park,
Bong Gu Song,
KyuSik Chang,
Wook-Gyo Lee,
Hee-Il Lee,
Chan Park,
Mi-Yeoun Park,
E-Hyun Shin
Publication year - 2014
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0088453
Subject(s) - orientia tsutsugamushi , trombiculidae , transovarial transmission , biology , scrub typhus , transmission (telecommunications) , acari , virology , zoology , tick , electrical engineering , engineering
Transovarial transmission of Orientia tsutsugamushi in colonies of Leptotrombidium palpale was studied in the parent and F 1 and F2 generations. Both transovarial transmission and filial infection rates were 100% in the parent and F 1 generations of Leptotrombidium palpale . The filial infection rate in the F 1 generation was 100%, but it declined to 94.3% in the F 2 progeny. The sex ratio of the F 1 generation from infected L. palpale was 1∶0.8 (male:female) and the proportion of males was relatively high. This study is the first to report on the transovarial transmission of O. tsutsugamushi in L. palpale . High transovarial transmission rates in L. palpale suggest that this species might be one of the major vectors of tsutsugamushi disease in Korea.