Rickettsia,Ehrlichia,Anaplasma, andBartonellain Ticks and Fleas from Dogs and Cats in Bangkok

Foongladda, Suporn; Inthawong, Dutsadee; Kositanont, Uraiwan; Gaywee, Jariyanart

doi:10.1089/vbz.2010.0174

Cited by 50 publications

(27 citation statements)

References 25 publications

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“…This is the first report indicating the presence of the agent of Mediterranean Spotted Fever in Nigeria. Rickettsiae with ompA gene are considered to be pathogenic, while those who exclude this gene are probably non-pathogenic endosymbionts [21]. Rickettsia africae , the etiologic agent of African tick fever in humans has been detected in ticks from Nigeria [9], [10] and other West African countries [20] but not in our study.…”

Section: Discussioncontrasting

confidence: 68%

Molecular Detection and Characterization of Tick-borne Pathogens in Dogs and Ticks from Nigeria

Kamani

Baneth

Mumcuoglu³

et al. 2013

PLoS Negl Trop Dis

139

116

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BackgroundOnly limited information is currently available on the prevalence of vector borne and zoonotic pathogens in dogs and ticks in Nigeria. The aim of this study was to use molecular techniques to detect and characterize vector borne pathogens in dogs and ticks from Nigeria.Methodology/Principal FindingsBlood samples and ticks (Rhipicephalus sanguineus, Rhipicephalus turanicus and Heamaphysalis leachi) collected from 181 dogs from Nigeria were molecularly screened for human and animal vector-borne pathogens by PCR and sequencing. DNA of Hepatozoon canis (41.4%), Ehrlichia canis (12.7%), Rickettsia spp. (8.8%), Babesia rossi (6.6%), Anaplasma platys (6.6%), Babesia vogeli (0.6%) and Theileria sp. (0.6%) was detected in the blood samples. DNA of E. canis (23.7%), H. canis (21.1%), Rickettsia spp. (10.5%), Candidatus Neoehrlichia mikurensis (5.3%) and A. platys (1.9%) was detected in 258 ticks collected from 42 of the 181 dogs. Co- infections with two pathogens were present in 37% of the dogs examined and one dog was co-infected with 3 pathogens. DNA of Rickettsia conorii israelensis was detected in one dog and Rhipicephalus sanguineus tick. DNA of another human pathogen, Candidatus N. mikurensis was detected in Rhipicephalus sanguineus and Heamaphysalis leachi ticks, and is the first description of Candidatus N. mikurensis in Africa. The Theileria sp. DNA detected in a local dog in this study had 98% sequence identity to Theileria ovis from sheep.Conclusions/SignificanceThe results of this study indicate that human and animal pathogens are abundant in dogs and their ticks in Nigeria and portray the potential high risk of human exposure to infection with these agents.

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Section: Discussioncontrasting

confidence: 68%

Molecular Detection and Characterization of Tick-borne Pathogens in Dogs and Ticks from Nigeria

Kamani

Baneth

Mumcuoglu³

et al. 2013

PLoS Negl Trop Dis

139

116

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“…For example, a partial gene of Anaplasma spp. was detected in Dermacentor auratus, Haemaphysalis lagrangei , and Amblyomma javanense collected from vertebrate hosts, including dogs, bears, and pangolins in the Thai‐Myanmar border region (Sangkhlaburi District, Kanchanaburi Province, Thailand) (Parola et al The Rickettsia ‐like Anaplasma platys has recently been identified in Rhipicephalus sanguineus ticks collected from dogs in 2011 (Foongladda et al In the present study, we report data concerning the tick species and investigate Rickettsia and Anaplasma bacteria in natural tick populations.…”

Section: Introductionmentioning

confidence: 71%

“…The results of the present study provide additional information supporting the impact of spotted fever on Thai public health (Parola et al Suttinont et al Moreover, we provided the first evidence of A. bovis in H. shimoga . However, additional Anaplasma species, such as Anaplasma platys , have been identified in Rhipicephalus sanguineus on dogs in Thailand (Foongladda et al These data suggest that domestic dogs might serve as reservoir hosts in rural areas or villages near the forest, and additional surveys and pathogen screening of tick species will increase the current understanding of the disease transmission cycle.…”

Section: Discussionmentioning

confidence: 99%

Detection of Rickettsia and Anaplasma from hard ticks in Thailand

Malaisri

Hirunkanokpun

Baimai

et al. 2015

Journal of Vector Ecology

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We collected a total of 169 adult hard ticks and 120 nymphs from under the leaves of plants located along tourist nature trails in ten localities. The results present data examining the vector competence of ticks of different genera and the presence of Rickettsia and Anaplasma species. The ticks belonged to three genera, Amblyomma, Dermacentor, and Haemaphysalis, comprising 11 species. Rickettsia bacteria were detected at three collection sites, while Anaplasma bacteria were detected at only one site. Phylogenetic analysis revealed new rickettsia genotypes from Thailand that were closely related to Rickettsia tamurae, Rickettsia monacensis, and Rickettsia montana. This study was also the first to show that Anaplasma bacteria are found in Haemaphysalis shimoga ticks and are closely related evolutionarily to Anaplasma bovis. These results provide additional information for the geographical distribution of tick species and tick-borne bacteria in Thailand and can therefore be applied for ecotourism management. Journal of Vector Ecology 40 (2): 262-268. 2015.

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“…Although Anaplasma phagocytophilum (causative agent of human granulocytic anaplasmosis) and Ehrlichia chaffeensis (causative agent of human monocytic ehrlichiosis) have been identified in ticks from the Thai–Myanmar border and in Bangkok, to date no human data on seroprevalence or clinical disease is available for these agents (Parola et al 2003a, Foongladda et al 2011). However, one report provides serological evidence of E. chaffeensis infections in a group of healthy volunteers in western Thailand (Heppner et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Underrecognized Arthropod-Borne and Zoonotic Pathogens in Northern and Northwestern Thailand: Serological Evidence and Opportunities for Awareness

Blacksell

Kantipong

Watthanaworawit

et al. 2015

Vector-Borne and Zoonotic Diseases

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Although scrub typhus and murine typhus are well-described tropical rickettsial illnesses, especially in Southeast Asia, only limited evidence is available for rickettsia-like pathogens contributing to the burden of undifferentiated febrile illness. Using commercially available kits, this study measured immunoglobulin G (IgG) antibody seroprevalence for Coxiella burnetii, Ehrlichia chaffeensis, Bartonella henselae, Anaplasma phagocytophilum, and spotted fever group rickettsiae (SFGR) in 375 patients enrolled in undifferentiated febrile illness studies at Chiangrai (northern Thailand) and Mae Sot (Thai–Myanmar border). Ehrlichia and SFGR were the most common causes of IgG seropositivity. A distinct relationship between age and seropositivity was found in Chiangrai with acquisition of IgG titers against Ehrlichia, Bartonella, Anaplasma, and SFGR in young adulthood, suggesting cumulative exposure to these pathogens. At Mae Sot, high early IgG titers against Ehrlichia and SFGR were common, whereas Anaplasma and Bartonella IgG titers increased at 50–60 years. Q fever associated with low IgG positivity at both study sites, with significantly higher prevalence at 30 years of age in Chiangrai. These data suggest that other rickettsial illnesses could contribute to the burden of febrile illness in Thailand and possibly adjacent regions. Improved diagnostics and better understanding of antibody longevity and cross-reactivity will improve identification and management of these easily treatable infectious diseases.

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Rickettsia,Ehrlichia,Anaplasma, andBartonellain Ticks and Fleas from Dogs and Cats in Bangkok

Cited by 50 publications

References 25 publications

Molecular Detection and Characterization of Tick-borne Pathogens in Dogs and Ticks from Nigeria

Molecular Detection and Characterization of Tick-borne Pathogens in Dogs and Ticks from Nigeria

Detection of Rickettsia and Anaplasma from hard ticks in Thailand

Underrecognized Arthropod-Borne and Zoonotic Pathogens in Northern and Northwestern Thailand: Serological Evidence and Opportunities for Awareness

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