Article
Microbiology
Veronika Urbanova, Eliska Kalinova, Petr Kopacek, Radek Sima
Summary: This study investigated the relationship between the American human pathogen Anaplasma phagocytophilum and the tick species Ixodes ricinus, and found that I. ricinus is not a competent vector for this pathogen.
Article
Immunology
Keith J. Price, Christine B. Graham, Bryn J. Witmier, Holly A. Chapman, Brooke L. Coder, Christian N. Boyer, Erik Foster, Sarah E. Maes, Ying Bai, Rebecca J. Eisen, Andrew D. Kyle
Summary: Ticks of Haemaphysalis longicornis collected from southeastern Pennsylvania were tested for pathogens, with 1 adult female testing positive for Borrelia burgdorferi sensu stricto, resulting in an infection rate of 0.4%. It is crucial to continue monitoring this invasive tick species to assess its impact on public health.
EMERGING INFECTIOUS DISEASES
(2021)
Article
Infectious Diseases
Jani J. Sormunen, Veli-Matti Pakanen, Riikka Elo, Satu Makela, Jukka Hytonen
Summary: Despite extensive screening efforts on ticks in Finland, no ticks carrying Francisella tularensis were found, suggesting no circulation of the pathogen in local tick populations in the high-incidence region of tularaemia.
TICKS AND TICK-BORNE DISEASES
(2021)
Article
Microbiology
Lisa Luu, Ana M. Palomar, Gemma Farrington, Anna-Katarina Schilling, Shonnette Premchand-Branker, John McGarry, Benjamin L. Makepeace, Anna Meredith, Lesley Bell-Sakyi
Summary: Red squirrels in the UK, an endangered species supplanted by grey squirrels, are potentially exposed to a variety of bacterial pathogens via feeding ticks. Further studies are needed to evaluate the threat posed to the vulnerable red squirrel population by Borrelia and other tick-borne pathogens.
Article
Microbiology
Alexander G. Litov, Oxana A. Belova, Sergey Bugmyrin, Ivan S. Kholodilov, Lidia Iu Romanova, Galina G. Karganova
Summary: The commonly used primer sets targeting rRNA were found to be unsuitable for hybrid tick determination, while the primer set targeting the Toll gene showed the best performance for DNA amplification from hybrid ticks.
Article
Parasitology
Paulina Maria Lesiczka, Kristyna Hrazdilova, Vaclav Honig, David Modry, Ludek Zurek
Summary: This study investigated the genetic diversity of Ixodes ricinus ticks and the tick-borne pathogen Anaplasma phagocytophilum attached to people. The results showed that ticks harbored multiple genetic variants of A. phagocytophilum, some of which were not recognized as zoonotic. Further studies are needed to determine the risk of human infection by genetic variants other than those designated as zoonotic.
PARASITES & VECTORS
(2023)
Article
Parasitology
Ekaterina K. Lagunova, Natalia A. Liapunova, Davaakhu Tuul, Gerechuluun Otgonsuren, Davaadorj Nomin, Nyamdorj Erdenebat, Davaajav Abmed, Galina A. Danchinova, Kozue Sato, Hiroki Kawabata, Maxim A. Khasnatinov
Summary: Ticks in Mongolia carry multiple tick-borne pathogens, including Borrelia spp. and relapsing fever agents. These pathogens persist independently in ticks, except for a possible shared circulation mode between A. phagocytophilum and Ehrlichia sp. Furthermore, the prevalence and spirochete load of Lyme disease and relapsing fever agents differ in ticks, suggesting different ecological niches.
PARASITES & VECTORS
(2022)
Article
Immunology
Oxana A. Belova, Alexandra E. Polienko, Anastasia D. Averianova, Galina G. Karganova
Summary: Ixodes ricius and Ixodes persulcatus ticks are the main vectors of tick-borne encephalitis virus (TBEV). The overlap in distribution ranges of these tick species can lead to hybridization, affecting both tick spread and arbovirus infection properties. The study found that virus transmission effectiveness and RNA copy numbers were highest in ticks, specifically hybrids, during the transmission of the Siberian subtype of TBEV. However, after molting, the transmission effectiveness decreased.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Sara Lysholm, Frida Aden, Anna Aspan, Ann Hoegberg, Jonas Johansson Wensman, Anna Omazic
Summary: This study investigated the presence of Anaplasma bacteria and associated antibodies in a subset of the Swedish goat population. The results showed that 1 out of 40 goats tested positive for the presence of genetic material from the bacteria, and 33% of the serum samples contained antibodies for anaplasmosis. These findings indicate that anaplasmosis is widespread in certain areas of Sweden's goat population.
Article
Microbiology
Katarzyna Kubiak, Malgorzata Dmitryjuk, Janina Dziekonska-Rynko, Patryk Siejwa, Ewa Dzika
Summary: The aim of this study was to assess the potential risk of human exposure to tick-borne infections in a recreation area in a spa town located in northern Poland. The study found that various microorganisms, including spirochetes, Babesia, and Rickettsia, were detected in ticks from the area. The infection rates varied among different tick species and co-infections were observed.
Article
Microbiology
Min-Goo Seo, Haeseung Lee, Badriah Alkathiri, KyuSung Ahn, Seung-Hun Lee, SungShik Shin, Seulgi Bae, Kyoo-Tae Kim, Min Jang, Sang-Kwon Lee, Yun Sang Cho, Kyung-Yeon Eo, Oh-Deog Kwon, Dongmi Kwak
Summary: The present study aimed to investigate the dominant tick populations and identify the pathogenic agents of anaplasmosis in ticks from Gyeongsang, Republic of Korea. A total of 3825 questing ticks were collected from 12 sites near animal farms in Gyeongsang. Molecular genomic analysis was conducted to detect Anaplasma genes in the collected ticks. The most prevalent tick species were Haemaphysalis longicornis, Haemaphysalis sp., Haemaphysalis flava, Ixodes nipponensis, and Amblyomma testudinarium in that order. The infection rates of Anaplasma species varied, with A. phagocytophilum being the most common. The findings of this study provide valuable information for future research on tick-borne diseases.
Article
Infectious Diseases
Indre Lipatova, Dalia Cerneviciene, Loreta Griciuviene, Irma Razanske, Asta Aleksandravicene, Arturas Kibisa, Jana Radzijevskaja, Wanda Olech, Krzysztof Anusz, Anna Didkowska, Algimantas Paulauskas
Summary: The presence of A. phagocytophilum infection in European bison tissues and ticks was assessed in Lithuania and Poland. The study revealed that 40% of European bison samples, 8.8% of Ixodes ricinus ticks, and 5.9% of Dermacentor reticulatus ticks carried A. phagocytophilum. Different genotypes of A. phagocytophilum were found in European bison and ticks, suggesting that European bison may serve as a natural reservoir of A. phagocytophilum.
TICKS AND TICK-BORNE DISEASES
(2023)
Article
Parasitology
Nannet D. Fabri, Hein Sprong, Tim R. Hofmeester, Hans Heesterbeek, Bjorn F. Donnars, Fredrik Widemo, Frauke Ecke, Joris P. G. M. Cromsigt
Summary: The study found that different ungulate species play different roles in the transmission of ticks and pathogens. Fallow deer, red deer, and roe deer play more important roles in the transmission of Anaplasma phagocytophilum, while wild boar play a relatively minor role in the transmission of Borrelia burgdorferi (s.l.).
PARASITES & VECTORS
(2021)
Article
Microbiology
Miroslaw M. Michalski, Katarzyna Kubiak, Magdalena Szczotko, Malgorzata Dmitryjuk
Summary: This study in north-eastern Poland focused on ticks removed from wild cervids and boars to examine the presence of Borrelia species, Rickettsia species, and Anaplasma phagocytophilum. The results showed that almost 40% of the collected ticks were infected, with A. phagocytophilum and Rickettsia species being the most prevalent. Different species of Borrelia were also identified, with Borrelia species only found in ticks collected from cervids. The study revealed significant differences in pathogen affinity to tick species, with Borrelia species and A. phagocytophilum more commonly detected in Ixodes ricinus than in Dermacentor reticulatus.
Article
Microbiology
Oxana A. Belova, Alexandra E. Polienko, Anastasia D. Averianova, Galina G. Karganova
Summary: The study analyzed the life cycle features of the hybrid between I. ricinus and I. persulcatus ticks under laboratory conditions. It was found that the hybrid generation is sterile, with decreased engorgement success in females and reduced hatched larvae. The morphogenetic diapause of the ticks also varied between the two species under laboratory conditions.
Article
Environmental Sciences
Anna Ivanova, Valentina Tefanova, Irina Reshetnjak, Tatiana Kuznetsova, Julia Geller, Ake Lundkvist, Marilin Janson, Kaedi Neare, Kaisa Velstroem, Pikka Jokelainen, Brian Lassen, Pirje Huett, Tiiu Saar, Arvo Viltrop, Irina Golovljova
FOOD AND ENVIRONMENTAL VIROLOGY
(2015)
Article
Infectious Diseases
Olga Katargina, Julia Geller, Anna Ivanova, Kairi Vaerv, Valentina Tefanova, Sirkka Vene, Ake Lundkvist, Irina Golovljova
TICKS AND TICK-BORNE DISEASES
(2015)
Article
Public, Environmental & Occupational Health
Brian Lassen, Marilin Janson, Kadi Neare, Tatjana Tallo, Irina Reshetnjak, Tatiana Kuznetsova, Arvo Viltrop, Irina Golovljova, Pikka Jokelainen
VECTOR-BORNE AND ZOONOTIC DISEASES
(2017)
Article
Infectious Diseases
Kairi Vaerv, Anna Ivanova, Julia Geller, Jaanus Remm, Kertu Jaik, Nina Tikunova, Vera Rar, Ake Lundkvist, Irina Golovljova
TICKS AND TICK-BORNE DISEASES
(2017)
Article
Infectious Diseases
Anna Ivanova, Julia Geller, Olga Katargina, Kairi Varv, Ake Lundkvist, Irina Golovljova
TICKS AND TICK-BORNE DISEASES
(2017)
Article
Virology
Tatiana V. Kuznetsova, Anna Ivanova-Pozdejeva, Irina Reshetnjak, Julia Geller, Kairi Varv, Reet Rumvolt, Maria Vikentjeva, Elena V. Trubnikova, Natalia V. Pozdniakova, Alexei B. Shevelev, Irina Golovljova
JOURNAL OF CLINICAL VIROLOGY
(2018)
Article
Parasitology
Jean-Francois Cosson, Lorraine Michelet, Julien Chotte, Evelyne Le Naour, Martine Cote, Elodie Devillers, Marie-Lazarine Poulle, Dominique Huet, Maxime Galan, Julia Geller, Sara Moutailler, Muriel Vayssier-Taussat
PARASITES & VECTORS
(2014)
Article
Biotechnology & Applied Microbiology
Eugeniy Smorodin, Boris Sergeyev, Oleg Kurtenkov, Tatiana Kuznetsova, Julia Geller
Article
Biotechnology & Applied Microbiology
Oleg Kurtenkov, Jelena Jakovleva, Boris Sergejev, Julia Geller
Article
Parasitology
Maria Vikentjeva, Julia Geller, Jaanus Remm, Irina Golovljova
Summary: This study detected and identified Rickettsia species in ticks attached to rodents in Estonia. Rickettsial DNA was found in 8.7% of the studied ticks, including the first identification of Candidatus Rickettsia uralica associated with Ixodes trianguliceps west of the Ural Mountains.
PARASITES & VECTORS
(2021)
Article
Virology
Kadri Koivumagi, Julia Geller, Karolin Toompere, Hiie Soeorg, Eveli Kallas, Ene-Ly Jogeda, Kristi Huik, Irja Lutsar
Summary: The study in Estonia revealed that the dominant strains of Norovirus were GII.4, GII.3, GII.17, and GII.6, with GII.4Sydney_2012[P31] being the most prevalent strain. There was a significant difference in strain diversity between age groups, indicating the importance of understanding Norovirus strain diversity for control and prevention measures.
JOURNAL OF MEDICAL VIROLOGY
(2022)
Article
Virology
Claude Saegerman, Marie-France Humblet, Marc Leandri, Gaelle Gonzalez, Paul Heyman, Hein Sprong, Monique L'Hostis, Sara Moutailler, Sarah I. Bonnet, Nadia Haddad, Nathalie Boulanger, Stephen Leib, Thierry Hoch, Etienne Thiry, Laure Bournez, Jana Kerlik, Aurelie Velay, Solveig Jore, Elsa Jourdain, Emmanuelle Gilot-Fromont, Katharina Brugger, Julia Geller, Marie Studahl, Natasa Knap, Tatjana Avsic-Zupanc, Daniel P. Ruzek, Tizza Zomer, Rene Bodker, Thomas F. H. Berger, Sandra Martin-Latil, Nick De Regge, Alice A. Raffetin, Sandrine Lacour, Matthias Klein, Tinne Lernout, Elsa Quillery, Zdenek Hubalek, Francisco Ruiz-Fons, Agustin Estrada-Pena, Philippe Fravalo, Pauline Kooh, Florence Etore, Celine M. Gossner, Bethan Purse
Summary: Tick-borne encephalitis (TBE) is an endemic viral disease in Eurasia, primarily transmitted to humans through ticks and occasionally through unpasteurized milk products. The European Centre for Disease Prevention and Control has reported an increase in TBE incidence over the years, as well as its emergence in new areas. Through expert knowledge elicitation, we identified nine key drivers for TBE emergence and increased incidence, including changes in human behavior, eating habits, landscape, humidity, difficulty in controlling reservoirs and vectors, temperature, wildlife compartments, increase in autochthonous wild mammals, and distribution of tick species vectors.