journal
MENU ▼
Read by QxMD icon Read
search

Ticks and Tick-borne Diseases

journal
https://www.readbyqxmd.com/read/28578851/cold-tolerance-and-biochemical-response-of-unfed-dermacentor-silvarum-ticks-to-low-temperature
#1
Tianhong Wang, Xiaolong Yang, Qingying Jia, Na Dong, Hui Wang, Yonghong Hu, Zhijun Yu, Jingze Liu
The important pathogen vector Dermacentor silvarum is widely distributed in China. However, the tick's adaptation to low winter temperatures remains poorly understood. We therefore investigated the cold hardiness and physiological and biochemical responses of D. silvarum ticks exposed to low temperatures. The results indicated that the lower lethal temperatures (LT50s) for larvae, nymphs, females and males were -16.9°C, -15.8°C, -20.0°C and -20.1°C, respectively. The discriminating temperatures (resulting in 20% survival) for larvae, nymphs, females and males were -18...
May 29, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28601472/detection-and-phylogenetic-characterisation-of-novel-anaplasma-and-ehrlichia-species-in-amblyomma-triguttatum-subsp-from-four-allopatric-populations-in-australia
#2
Alexander W Gofton, Helen P Waudby, Sophie Petit, Telleasha L Greay, Una M Ryan, Peter J Irwin
Anaplasma and Ehrlichia spp. are tick-borne pathogens that can cause severe disease in domestic animals, and several species are responsible for emerging zoonoses in the northern hemisphere. Until recently, the only members of these genera reported in Australia (A. marginale, A. centrale, and A. platys) were introduced from other continents, through the importation of domestic animals and their associated ticks. However, unique Anaplasma and Ehrlichia 16S rRNA gene sequences were recently detected for the first time in native Australian ticks, particularly in Amblyomma triguttatum subsp...
May 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28576619/three-different-hepatozoon-species-in-domestic-cats-from-southern-italy
#3
Alessio Giannelli, Maria Stefania Latrofa, Yaarit Nachum-Biala, Adnan Hodžić, Grazia Greco, Anna Attanasi, Giada Annoscia, Domenico Otranto, Gad Baneth
Three species of Hepatozoon, namely, Hepatozoon felis, Hepatozoon canis and Hepatozoon silvestris may affect domestic and/or wild felids. Although hepatozoonosis has been documented in a wide range of mammal species, data on cats are limited. To investigate the occurrence of these pathogens in cats, blood samples were collected from animals living in three provinces of southern Italy (Bari, Lecce, and Matera), and molecularly analysed by PCR amplification and sequencing of segments of the 18S rRNA gene. Out of 196 blood samples collected, Hepatozoon spp...
May 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28558992/molecular-surveillance-of-theileria-parasites-of-livestock-in-oman
#4
Amira Al-Fahdi, Badar Alqamashoui, Salama Al-Hamidhi, Onur Kose, Mohammed H Tageldin, Patrick Bobade, Eugene H Johnson, Abdel-Rahim Hussain, Tulin Karagenc, Andy Tait, Brian Shiels, Huseyin Bilgin Bilgic, Hamza Babiker
BACKGROUND: Theileriosis is one of the most prevalent infectious diseases of livestock in the Arabian Peninsula, and causes high rates of mortality and morbidity in sheep and cattle. However, there is a paucity of information on the distribution of Theileria spp. over the whole region and their impact on different hosts. The present study carried out a country-wide molecular survey for Theileria spp. of livestock in Oman across four governorates. The aim of the survey was to define the prevalence of Theileria spp...
May 21, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28566216/molecular-quantitative-assay-for-esterase-mediated-organophosphate-resistance-in-rhipicephalus-microplus
#5
Luciana Gatto Brito, Loui de Oliveira Nery, Fabio da Silva Barbieri, Maribel E Funes Huacca, Soraya Dos Santos Pereira, Renata Reis da Silva, Carla Celedônio de Freitas Fernanades, Márcia Cristina de Sena Oliveira
The use of pesticides is the main tool to control infestations of the cattle tick Rhipicephalus microplus, and organophosphate (OP) is one of the most used compounds for this purpose. Carboxylesterases (ChEs) are targets for OP pesticides in arthropods, and acetylcholinesterase 2 (AChE2) and esterase 1 (EST1) are metabolic enzymes involved in the xenobiotic detoxification process. The increase in the synthesis of these enzymes can be detected by the quantitative polymerase chain reaction (qPCR) assay, which was used to identify cattle tick populations resistant to OP pesticides...
May 19, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28549720/infection-with-borrelia-chilensis-in-ixodes-stilesi-ticks-collected-from-pudu-puda-deer
#6
Claudio Verdugo, Omar Jiménez, Carlos Hernández, Pedro Álvarez, Angelo Espinoza, Daniel González-Acuña
Lyme borreliosis is a vector-borne zoonosis caused by Borrelia burgdorferi sensu lato species complex spirochetes, which are maintained in transmission cycles among vertebrates and Ixodes ticks. Recently, a new genospecies within this complex, Borrelia chilensis, was described in Ixodes stilesi collected from the environment and from rodents in Chile. This tick also infests the native Southern pudu deer (Pudu puda). The objectives of this study were to investigate the prevalence, intensity of infestation, and aggregation of hard ticks on this deer species, and to determine the presence of borrelial pathogens in the ticks...
May 18, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28539197/candidatus-neoehrlichia-mikurensis-and-borrelia-burgdorferi-sensu-lato-detected-in-the-blood-of-norwegian-patients-with-erythema-migrans
#7
H Quarsten, A Grankvist, L Høyvoll, I B Myre, T Skarpaas, V Kjelland, C Wenneras, S Noraas
The most common tick-borne human disease in Norway is Lyme borreliosis. Ticks in Norway also harbour less known disease-causing agents such as Candidatus Neoehrlichia mikurensis, Borrelia miyamotoi and Rickettsia helvetica. However, human infections caused by these pathogens have never been described in Norway. The main aims of the study were to evaluate the contribution of several tick-borne bacterial agents, other than Borrelia burgdorferi sensu lato, to zoonotic diseases in Norway and to determine their clinical pictures...
May 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28528880/lyme-borreliae-prevalence-and-genospecies-distribution-in-ticks-removed-from-humans
#8
Patrick Waindok, Sabine Schicht, Volker Fingerle, Christina Strube
Lyme borreliosis (LB) is the most important human tick-borne disease, but Borrelia genospecies cause different clinical manifestations. Ticks of the genus Ixodes removed from humans between 2006 and 2012 were analysed for Borrelia burgdorferi sensu lato (sl) infections. The majority of ticks originated from the Greater Hanover region in Northern Germany. The engorgement status varied over the entire spectrum from unengorged (no evidence of started blood feeding) to fully engorged. In the present study, prevalence data for B...
May 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28528879/functional-annotation-and-analysis-of-the-ornithodoros-moubata-midgut-genes-differentially-expressed-after-blood-feeding
#9
Ana Oleaga, Prosper Obolo-Mvoulouga, Raúl Manzano-Román, Ricardo Pérez-Sánchez
The argasid tick Ornithodoros moubata is the main vector of the African swine fever and the human relapsing fever in Africa. As part of the host-parasite-pathogen interface, the tick midgut expresses key proteins for tick survival and tick-borne pathogen transmission. Accordingly, midgut proteins are potential targets for the development of new drugs and vaccines aimed at tick control, and obtaining proteomic and transcriptomic data from the O. moubata midgut would facilitate the identification of such target candidates...
May 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28506539/description-of-a-new-soft-tick-species-acari-argasidae-ornithodoros-associated-with-stream-breeding-frogs-anura-cycloramphidae-cycloramphus-in-brazil
#10
Sebastián Muñoz-Leal, Luís Felipe Toledo, José M Venzal, Arlei Marcili, Thiago F Martins, Igor C L Acosta, Adriano Pinter, Marcelo B Labruna
In this study, we present a morphological description of immature and adult specimens of Ornithodoros saraivai n. sp., a tick associated with the frog Cycloramphus boraceiensis (Cycloramphidae) at São Sebastião island, located in the São Paulo state seaboard, Brazil. While larvae of O. saraivai are ecologically related to Ornithodoros faccinii, another soft tick associated with cycloramphids, the combination of 7 sternal pairs, 16 dorsal pairs, a pyriform dorsal plate and a partially toothed hypostome constitute unique characters of the O...
May 10, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28526419/a-brief-history-of-the-discovery-of-tick-borne-encephalitis-virus-in-the-late-1930s-based-on-reminiscences-of-members-of-the-expeditions-their-colleagues-and-relatives
#11
REVIEW
Vladimir I Zlobin, Vanda V Pogodina, Olaf Kahl
Tick-borne encephalitis virus is the etiological agent of a severe human disease transmitted by hard ticks. It occurs in large parts of eastern, central, and western Asia and in Europe with thousands of human cases each year. Here, the discovery of the virus by Soviet scientists in the late 1930s in the Far East is described. The pioneering work involved with this discovery, which resulted in great scientific and epidemiological achievement, was undertaken under the most difficult conditions, and some of the scientists and their technical assistants paid for it with their health and even their lives...
May 5, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28499721/efficacy-of-south-african-babesia-bovis-vaccine-against-field-isolates
#12
P C Troskie, A A Latif, B J Mans, M P Combrink
A high-passage Babesia bovis vaccine containing only one genotype population was, although protective, inferior compared to the immunity afforded by a lower passage of the same strain containing two populations. The 24 times serially passaged South African B. bovis S vaccine strain contain only a single parasite population (Bv80 allele A 558bp). Forty-four field isolates sampled were all found different with regard to the number and composition of the parasite populations present in each isolate. The extensive genotypic diversity in South Africa and the limited genotypic diversity observed in the S24 vaccine, raised the question on its ability to protect against such diverse populations...
May 3, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28499722/babesia-genotypes-in-haemaphysalis-concinna-collected-from-birds-in-hungary-reflect-phylogeographic-connections-with-siberia-and-the-far-east
#13
Barbara Flaisz, Kinga M Sulyok, Dávid Kováts, Jenő Kontschán, Tibor Csörgő, Ármin Csipak, Miklós Gyuranecz, Sándor Hornok
Haemaphysalis concinna is the second most common tick species attaching to birds in Hungary. Recently, Babesia genotypes, found in Siberia and the Far East, have been detected in this tick species collected from the vegetation in Hungary and Slovakia. The aim of this study was to molecularly investigate if these piroplasms also occur in H. concinna carried by migratory birds, which might explain their occurrence in the western Palaearctic. During a 2-year period, 321 H. concinna larvae and nymphs were collected from 121 passerine birds (of 19 species) in Hungary...
April 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28479066/molecular-analyses-reveal-an-abundant-diversity-of-ticks-and-rickettsial-agents-associated-with-wild-birds-in-two-regions-of-primary-brazilian-atlantic-rainforest
#14
Hermes Ribeiro Luz, João Luiz Horacio Faccini, Douglas McIntosh
Brazilian wild birds are recognized as frequent and important hosts for immature stages of more than half of the 32 recognized species of Amblyomma ticks recorded in that country. Several species of Amblyomma harbor rickettsial agents, including members of the spotted fever group (SFG). Most studies on this topic relied primarily on morphological characterization and reported large portions of the collected ticks at the genus rather than species level. Clearly, this factor may have contributed to an underestimation of tick diversity and distribution and makes comparisons between studies difficult...
April 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28479064/detection-of-a-novel-putative-phlebovirus-and-first-isolation-of-dugbe-virus-from-ticks-in-accra-ghana
#15
Daisuke Kobayashi, Mitsuko Ohashi, Joseph H N Osei, Esinam Agbosu, Millicent Opoku, Alfred Agbekudzi, Joannitta Joannides, Ryosuke Fujita, Toshinori Sasaki, J H Kofi Bonney, Samuel Dadzie, Haruhiko Isawa, Kyoko Sawabe, Nobuo Ohta
Ticks are ectoparasites that transmit various types of human and animal pathogens. In particular, emerging and re-emerging diseases caused by tick-borne viruses are public health concerns around the world. However, in many countries of the sub-Saharan African region, epidemiological information on tick-borne viral infections is limited, and their prevalence and distribution remain largely unknown. In this study, we conducted surveillance on ticks to detect medically important tick-borne bunyaviruses in three study sites in and near to Accra, the capital city of Ghana, in 2015...
April 23, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28457822/assessment-of-a-quantitative-5-nuclease-real-time-polymerase-chain-reaction-using-groel-gene-for-ehrlichia-and-anaplasma-species-in-rodents-in-brazil
#16
Jyan Lucas Benevenute, John Stephen Dumler, Maria Ogrzewalska, André Luiz Rodrigues Roque, Victoria Valente Califre Mello, Keyla Carstens Marques de Sousa, Luiz Ricardo Gonçalves, Paulo Sérgio D'Andrea, Elba Regina de Sampaio Lemos, Rosangela Zacarias Machado, Marcos Rogério André
New genotypes of Anaplasmataceae agents have been detected in wild carnivores, birds and deer in Brazil. The present work aimed to investigate the presence of Ehrlichia and Anaplasma species in rodents sampled in Brazil. Additionally, a newly designed quantitative 5' nuclease real-time multiplex PCR for Ehrlichia and Anaplasma spp. detection based on groEL gene amplification was designed, showing high specificity and sensitivity (10 groEL fragment copy/μL). Between 2000 and 2011, different rodent species [n=60] were trapped in 5 Brazilian biomes...
April 23, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28461151/mapping-the-distribution-of-tick-borne-encephalitis-in-mainland-china
#17
Ruo-Xi Sun, Sheng-Jie Lai, Yang Yang, Xin-Lou Li, Kun Liu, Hong-Wu Yao, Hang Zhou, Yu Li, Li-Ping Wang, Di Mu, Wen-Wu Yin, Li-Qun Fang, Hong-Jie Yu, Wu-Chun Cao
Tick-borne encephalitis (TBE) has become an increasing public health threat in recent years, ranging from Europe, through far-eastern Russia to Japan and northern China. However, the neglect of its expansion and scarce analyses of the dynamics have made the overall disease burden and the risk distribution of the disease being unclear in mainland China. In this study, we described epidemiological characteristics of 2117 reported human TBE cases from 2006 to 2013 in mainland China. About 99% of the cases were reported in forest areas of northeastern China, and 93% of reported infections occurred during May-July...
April 17, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28442240/cercopithifilaria-bainae-in-rhipicephalus-sanguineus-sensu-lato-ticks-from-dogs-in-brazil
#18
Marcos Antônio Bezerra Santos, Islanne Barbosa de Souza, Lucia Oliveira de Macedo, Carlos Alberto do Nascimento Ramos, Ana Gabriela de Oliveira Rego, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho
Rhipicephalus sanguineus sensu lato (s.l.) ticks act as intermediate host for a range of canine vector-borne pathogens, including nematodes ranked in the genus Cercopithifilaria. Though being the object of several studies in the last years, information on the distribution of these parasites is still lacking. In this study, the occurrence of Cercopithifilaria spp. was investigated in on-host population of R. sanguineus s.l. collected from naturally infested dogs. Ticks (n=1906, including one larva, 294 nymphs and 1611 adults) were sampled on domestic dogs (n=155) living in the municipality of Garanhuns (northeastern Brazil)...
April 17, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28442241/molecular-detection-and-phylogenetic-analysis-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-shelter-dogs-and-cats-in-the-republic-of-korea
#19
Seung-Hun Lee, Hyun-Joo Kim, Jae-Won Byun, Min-Jung Lee, Neung-Hee Kim, Doo-Hwan Kim, Hae-Eun Kang, Hyang-Mi Nam
Severe fever with thrombocytopenia syndrome is a tick-borne infectious disease. The present study investigated the prevalence of severe fever with thrombocytopenia syndrome virus (SFTSV) in shelter dogs and cats in the Republic of Korea (ROK). Blood samples were collected from 426 dogs and 215 cats in animal shelters throughout the ROK in 2016. Of the tested samples, one (0.2%) dog and one (0.5%) cat were positive for SFTSV. Phylogenetic analysis of the sequences obtained in the present study showed that the viruses belonged to the J3 clade, which is considered the dominant clade in the ROK...
April 14, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28457821/a-retrospective-study-of-the-characterization-of-rickettsia-species-in-ticks-collected-from-humans
#20
Valeria Blanda, Alessandra Torina, Francesco La Russa, Rosalia D'Agostino, Kety Randazzo, Salvatore Scimeca, Elisabetta Giudice, Santo Caracappa, Antonio Cascio, José de la Fuente
Rickettsiae (family Rickettsiaceae, order Rickettsiales) are obligate intracellular bacteria transmitted by arthropod vectors. Several Rickettsia species causing vector-borne rickettsioses belong to the spotted fever group (SFG). Traditionally, Rickettsia conorii has been considered as the main etiologic agent of Mediterranean spotted fever. However, the molecular characterization of rickettsiae allowed identifying other species involved in spotted fever in the Mediterranean region. In this study, 42 ticks collected from humans were subjected to morphological identification and molecular characterization of Rickettsia species potentially involved in human rickettsiosis in Sicily...
April 12, 2017: Ticks and Tick-borne Diseases
journal
journal
42830
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"