scholarly journals Detection of Borrelia burgdorferi Sensu Lato and Relapsing Fever Borrelia in Feeding Ixodes Ticks and Rodents in Sarawak, Malaysia: New Geographical Records of Borrelia yangtzensis and Borrelia miyamotoi

Pathogens ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 846
Author(s):  
Alice C. C. Lau ◽  
Yongjin Qiu ◽  
Mohamed Abdallah Mohamed Moustafa ◽  
Ryo Nakao ◽  
Michito Shimozuru ◽  
...  

Members of the Borrelia burgdorferi sensu lato (Bbsl) complex are etiological agents of Lyme disease (LD), and Borrelia miyamotoi is one of the relapsing fever Borrelia (RFB). Despite the serological evidence of LD in Malaysia, there has been no report from Sarawak, Malaysian Borneo. Thus, this study aimed to detect and characterize Borrelia in rodents and Ixodes ticks from primary forests and an oil palm (OP) plantation in Sarawak. Borrelia yangtzensis (a member of the Bbsl complex) was detected in 43.8% (14/32) of Ixodes granulatus; most of the positive ticks were from the OP plantation (13/14). Out of 56 rodents, B. yangtzensis was detected in four Rattus spp. from the OP plantation and B. miyamotoi was detected in one rodent, Sundamys muelleri, from the primary forest. Further, the positive samples of B. yangtzensis were randomly selected for multilocus sequence analysis (MLSA). The MLSA results of successfully amplified tick samples revealed a clustering with the sequences isolated from Japan and China. This study is the first evidence of B. miyamotoi, a known human pathogen in Malaysia, and B. yangtzensis, which is circulating in ticks and rodents in Sarawak, Malaysian Borneo, and presenting a new geographical record of the Borrelia spp.

Author(s):  
Matthew T Milholland ◽  
Lars Eisen ◽  
Robyn M Nadolny ◽  
Andrias Hojgaard ◽  
Erika T Machtinger ◽  
...  

Abstract Lyme and other tick-borne diseases are increasing in the eastern United States and there is a lack of research on integrated strategies to control tick vectors. Here we present results of a study on tick-borne pathogens detected from tick vectors and rodent reservoirs from an ongoing 5-yr tick suppression study in the Lyme disease-endemic state of Maryland, where human-biting tick species, including Ixodes scapularis Say (Acari: Ixodidae) (the primary vector of Lyme disease spirochetes), are abundant. During the 2017 tick season, we collected 207 questing ticks and 602 ticks recovered from 327 mice (Peromyscus spp. (Rodentia: Cricetidae)), together with blood and ear tissue from the mice, at seven suburban parks in Howard County. Ticks were selectively tested for the presence of the causative agents of Lyme disease (Borrelia burgdorferi sensu lato [s.l.]), anaplasmosis (Anaplasma phagocytophilum), babesiosis (Babesia microti), ehrlichiosis (Ehrlichia ewingii, Ehrlichia chaffeensis, and ‘Panola Mountain’ Ehrlichia) and spotted fever group rickettsiosis (Rickettsia spp.). Peromyscus ear tissue and blood samples were tested for Bo. burgdorferi sensu stricto (s.s), A. phagocytophilum, Ba. microti, and Borrelia miyamotoi. We found 13.6% (15/110) of questing I. scapularis nymphs to be Bo. burgdorferi s.l. positive and 1.8% (2/110) were A. phagocytophilum positive among all sites. Borrelia burgdorferi s.s. was found in 71.1% (54/76) of I. scapularis nymphs removed from mice and 58.8% (194/330) of captured mice. Results from study on tick abundance and pathogen infection status in questing ticks, rodent reservoirs, and ticks feeding on Peromyscus spp. will aid efficacy evaluation of the integrated tick management measures being implemented.


2019 ◽  
Vol 78 (1) ◽  
pp. 113-126 ◽  
Author(s):  
Katarzyna Kubiak ◽  
Janina Dziekońska-Rynko ◽  
Hanna Szymańska ◽  
Dariusz Kubiak ◽  
Małgorzata Dmitryjuk ◽  
...  

2007 ◽  
Vol 52 (2) ◽  
Author(s):  
Alicja Gryczyńska-Siemiątkowska ◽  
Alicja Siedlecka ◽  
Joanna Stańczak ◽  
Miłosława Barkowska

AbstractSand lizards (Lacerta agilis) were trapped and examined for ticks from May to September in 2002 and 2003 in Northeastern Poland. A total of 233 Ixodes ricinus (L.) ticks (76 larvae and 157 nymphs) was found on 31 of 235 captured lizards (13.2%). The tick infestation is relatively low compared to that of mammals and passerine birds from the same area (Siński et al. 2006, Gryczyńska et al. 2002). Tick infestation depended on the month of capture, being the highest in spring. In autumn no ticks were recorded on any of the captured lizards. The oldest lizards carried the highest number of ticks but no differences related to sex of the host were found. All the collected ticks were analysed by PCR for the presence of Borrelia burgdorferi sensu lato, the etiological agents of Lyme disease. Spirochetes were detected in 11 out of 233 (4.7%) ticks tested. Genetic analysis confirmed that the spirochetes are members of the Borrelia afzelii, B. garinii and B. burgdorferi sensu stricto genospecies. Mixed infection were not detected. The prevalence of infection was analysed in relation to months of the capture, age and sex of the lizards, but differences were not statistically significant. The obtained results suggest that lizards are probably not B. burgdorferi reservoirs, but further studies are required to confirm this.


2017 ◽  
Vol 142 (11) ◽  
pp. 805-810
Author(s):  
Johannes Borde ◽  
Gerhard Dobler ◽  
Siegbert Rieg

Was ist neu? Frühsommer-Meningoenzephalitis (FSME) In Europa nimmt die Ausbreitung von FSME in Richtung Westen zu. Erstmalig ist 2016 ein autochthoner humaner FSME-Fall in den Niederlanden dokumentiert worden. Die FSME-Erkrankungsfälle im Landkreis Reutlingen rücken die alimentäre FSME-Transmission in Deutschland wieder in das Bewusstsein. Tularämie (Hasenpest) Francisella tularensis hat ein breites Wirtsspektrum, von Kleinsäugern bis hin zu Arthropoden, wie z. B. Schildzecken. Die Transmission durch Zeqcken wurde bisher wenig beachtet. Vor dem Hintergrund neuerer epidemiologischen Erkenntnisse sollte auch nach Zeckenstichen mit entsprechenden Symptomen eine Francisella tularensis Infektion in Erwägung gezogen werden. Persistierende Beschwerden bei Borreliose (Borrelia-burgdorferi-sensu-lato-Komplex) Eine aktuelle Studie untersuchte den Effekt einer verlängerten antiinfektiven Behandlungsdauer auf persistierende Symptome, die mit einer Borrelieninfektion (Borrelia-burgdorferi-sensu-lato-Komplex) in Verbindung gebracht werden können. Die Therapie über 2 Wochen führte zu einer quantitativ gleichen und ebenso nachhaltigen Zunahme der Lebensqualität wie ein verlängertes Schema. Borrelia miyamotoi ist ein „Emerging Pathogen“ – erstmalig konnte nun auch in Deutschland ein humaner Infektionsfall nachgewiesen werden.


2020 ◽  
Vol 11 (1) ◽  
pp. 101300 ◽  
Author(s):  
Jerzy Michalik ◽  
Beata Wodecka ◽  
Justyna Liberska ◽  
Mirosława Dabert ◽  
Tomasz Postawa ◽  
...  

2018 ◽  
Vol 3 (4) ◽  
pp. 21-26
Author(s):  
V. A. Lubova ◽  
E. L. Bondarenko ◽  
G. N. Leonova

The Khasan district, located in the south of the Primorsky Krai, borders with the Democratic People’s Republic of Korea (DPRK) and  the People’s Republic of China (PRC). This determines the special  importance in terms of epizootological observations of the causative  agents of vector-borne tick infections. To date, such studies have not  been carried out in the Khasan district.Aims: to show infections of ixodid ticks in the south of Primorsky Krai (in the Khasansky District), causative agents of viral and bacterial tick-borne infections.Materials and methods. During the period of 2017, 387 specimens of ixodid ticks were collected from the vegetation. The study of collected ticks was carried out using the real-time polymerase chain reaction method.Results. RNA of the TBE virus was detected in 1.1 %, Borrelia burgdorferi sensu lato DNA in 12.5 %, Borrelia miyamotoi DNA in 0.6 %, Anaplasma phagocytophillum DNA in 4 %, Ehrlichia chaffeensis /  Ehrlichia muris DNA in 1.7 %. In 8 %, rickettsia DNA was detected,  of which Rickettsia heilongjiangensis in 12 cases. Seven cases of  mixed infection of various species of ticks with two pathogens were detected.Conclusions. The data obtained suggest that the pathogens of infections transmitted by ixodid ticks can circulate not only  throughout the border area of the south of the Primorsky Krai  (Khasansky District) but also in the adjacent territories of the PRC and DPRK.


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