Sándor Szekeres

ORCID: 0000-0002-6150-8356
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About
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Research Areas
  • Vector-borne infectious diseases
  • Viral Infections and Vectors
  • Yersinia bacterium, plague, ectoparasites research
  • Vector-Borne Animal Diseases
  • Animal Virus Infections Studies
  • Viral gastroenteritis research and epidemiology
  • Insect and Pesticide Research
  • Bird parasitology and diseases
  • Mosquito-borne diseases and control
  • Study of Mite Species
  • Viral Infections and Immunology Research
  • Zoonotic diseases and public health
  • Plant Virus Research Studies
  • Parasitic Infections and Diagnostics
  • Virus-based gene therapy research
  • Aquatic Invertebrate Ecology and Behavior
  • Toxoplasma gondii Research Studies
  • Insect symbiosis and bacterial influences
  • Autoimmune Bullous Skin Diseases
  • Insects and Parasite Interactions
  • Plant Pathogenic Bacteria Studies
  • Insect and Arachnid Ecology and Behavior
  • Phytoplasmas and Hemiptera pathogens
  • Ecology and biodiversity studies
  • Streptococcal Infections and Treatments

University of Veterinary Medicine
2016-2025

National Institute for Public Health and the Environment
2019

Magyar Agrár- és Élettudományi Egyetem
2014-2016

Anaplasma phagocytophilum is the etiological agent of granulocytic anaplasmosis in humans and animals. Wild animals ticks play key roles enzootic cycles pathogen. Potential ecotypes A. have been characterized genetically, but their host range, zoonotic potential transmission dynamics has only incompletely resolved. The presence DNA was determined more than 6000 ixodid collected from vegetation wildlife, 289 tissue samples wild domestic animals, 69 keds deer, originating various geographic...

10.1186/1756-3305-7-365 article EN cc-by Parasites & Vectors 2014-08-15

Borrelia miyamotoi, the newly discovered human pathogenic relapsing fever spirochete, and burgdorferi sensu lato are maintained in natural rodent populations. The aim of this study was to investigate cycle B. miyamotoi s.l. a forest habitat with intensive hunting, forestry work recreational activity Southern Hungary. We collected rodents modified Sherman-traps during 2010–2013 questing ticks flagging 2012. Small mammals were euthanized, tissue samples all ectoparasites removed stored....

10.1186/s13071-015-0922-2 article EN cc-by Parasites & Vectors 2015-06-05

Small- and medium-sized mammals play an important role in the life cycle of tick-borne pathogens urban habitats. Our aim was to apply general protocol, DAMA (documentation–assessment–monitoring–action), which is integrated proposal build a proactive capacity understand, anticipate, respond outcomes accelerating environmental change. Here we tested whether road-killed carcasses areas are useful sources tissue parasite samples investigate these species' contribution epidemiology vector-borne...

10.1111/tbed.13019 article EN Transboundary and Emerging Diseases 2018-09-19

Abstract Rodents (Mammalia: Rodentia) are among the ubiquitous hosts of Giardia duodenalis , as they can harbour at least six assemblages this species, including zoonotic A and B. However, studies targeting a broad spectrum rodents rabbits sampled in same region scarce, even Europe. During study, 164 samples were collected from five rodent species locations Hungary, to examine presence G. with traditional parasitological molecular methods. Parasitological analysis revealed cysts 58.3%...

10.1556/004.2024.01115 article EN cc-by Acta Veterinaria Hungarica 2025-02-18

Abstract Since 2012, sakobuvirus and sakobuvirus-like (family Picornaviridae ) sequences have been detected in felines, wild boars, badgers, fur seals. In this study, we determined the genome sequence of a novel identified faecal samples from European badgers ( Meles meles Hungary. The strain SakV/badger/B40B/2022/HUN (PQ382029) has type IV internal ribosome entry site (IRES) and'barbell-like' structures its 5' 3’UTRs, with genomic layout that matches L-1AB-1C-1D/2A H − Box/NC...

10.1007/s00705-025-06234-4 article EN cc-by Archives of Virology 2025-02-20

European badgers are opportunistic animals that could serve as important hosts in the life cycle of hard ticks (Acari: Ixodidae) when entering peri‐urban and urban environments. In this study, spleen samples were collected from ( Meles meles ) found roadkill between 2020 2021 habitats Central Europe, Hungary. Altogether, 117 ticks, representing seven species Ixodes ricinus , kaiseri canisuga hexagonus Haemaphysalis concinna Alloceraea inermis Dermacentor reticulatus removed 49 badgers....

10.1155/tbed/1587951 article EN cc-by Transboundary and Emerging Diseases 2025-01-01

Adult fleas are haematophagous ectoparasites of warm-blooded vertebrates, particularly mammals. Among them, the cat flea (Ctenocephalides felis) and human (Pulex irritans) have high veterinary-medical significance, owing to their cosmopolitan distribution role in transmission important vector-borne pathogens. While taxonomy Ct. felis has been investigated on a morphological basis during past decades, its molecular-phylogenetic analyses only recently conducted. This study expands knowledge...

10.1186/s13071-018-2798-4 article EN cc-by Parasites & Vectors 2018-04-02

Abstract The two most important tick species in Pakistan are Rhipicephalus microplus and Hyalomma anatolicum . When associated with cattle, these have one or three host life cycles, respectively, potential implications for their population genetics vector role the transmission of pathogens. To compare this context molecular-phylogenetic methods, during present study 123 ticks were collected from cattle northern Pakistan. Two mitochondrial markers 36 molecularly analyzed. All 11 R. specimens...

10.1007/s10493-019-00418-9 article EN cc-by Experimental and Applied Acarology 2019-10-01

Accidentally found, two poisoned brown rats from Hungary were surveyed for presence of circoviral DNA, using specific nested primers, designed against the rep gene virus. Both specimens positive. The whole genomes amplified inverse PCR based on Rep sequence parts and sequenced by primer walking method. Genomic analyses revealed that these novel rat viruses, together with tawny owl-associated circovirus reported Italian researchers in 2022, are variations same virus genus Circovirus. In...

10.1016/j.meegid.2023.105548 article EN cc-by-nc-nd Infection Genetics and Evolution 2024-01-02

Borrelia miyamotoi is a relapsing fever Borrelia, transmitted by hard (Ixodes) ticks, which are also the main vector for burgdorferi. A widely used test serodiagnosis of Lyme borreliosis an enzyme immunoassay (EIA) based on C6 peptide B. burgdorferi sl VlsE protein. We set out to study reactivity upon infection with in large well-characterized disease (BMD) patient sera and experimental murine infection.We performed silico analyses, comparing C6-peptide immunodominant variable proteins...

10.1016/j.cmi.2019.07.026 article EN cc-by-nc-nd Clinical Microbiology and Infection 2019-08-09

The phylogeny of the hard tick genus Amblyomma Koch, 1844 deserves special attention, because several poorly studied species associated with reptiles still bear name this genus, although they may not belong to it. This study focuses on two such uncertain taxonomic status, i.e., transversale (Lucas, 1845) and exornatum 1844, analyzing mitochondrial (cytochrome c oxidase subunit 1 16S rRNA) nuclear (18S 28S genes. In cox1 phylogenetic analysis, both Am. were part a sister group all other...

10.1016/j.ttbdis.2020.101494 article EN cc-by Ticks and Tick-borne Diseases 2020-06-21

Among live wild mammals adapted to urban and peri-urban habitats in Europe, members of the families Felidae, Mustelidae Sciuridae deserve special attention as pathogen reservoirs because all these include that are kept pets. We report here results our study on two important groups tick-borne protozoan parasites ticks tissues cats, mustelids red squirrels.DNA was extracted from carnivores (wild mustelids; n = 16) squirrels (n 4), well ixodid 89) collected hosts. These DNA extracts were...

10.1186/s13071-022-05271-1 article EN cc-by Parasites & Vectors 2022-05-21

Abstract Background From a veterinary-medical point of view, the stable fly, Stomoxys calcitrans , is perhaps economically most important blood-sucking muscoid fly species (Diptera: Muscidae), owing to its worldwide occurrence, frequently high local abundance, direct harm caused livestock, pet animals and humans, as well vector role. Considering latter in context protozoan parasites, mechanical trypanosomes Besnoitia besnoiti . However, role piroplasms appears be seldom studied, despite old...

10.1186/s13071-020-04041-1 article EN cc-by Parasites & Vectors 2020-04-09

Abstract In this study, a novel genotype of genogroup X (GX) sapovirus (family Caliciviridae ) was detected in the small intestinal contents golden jackal ( Canis aureus Hungary and characterised by viral metagenomics next-generation sequencing techniques. The complete genome strain, GX/Dömsöd/DOCA-11/2020/HUN (PP105600), is 7,128 nt length. ORF1- ORF2-encoded proteins (NSP, VP1, VP2) have 98%, 95%, 88% amino acid sequence identity to corresponding GX sapoviruses from domestic pigs, but...

10.1007/s00705-024-06034-2 article EN cc-by Archives of Virology 2024-04-17

Wild boars show increasing numbers and population densities throughout Europe, including Hungary. While their presence is appreciated as game animals, they are also responsible for significant agricultural damage, habitat degradation water quality issues. In addition, wild may harbor ticks can act reservoirs of tick-borne pathogens, thus posing a risk transmission towards humans domestic animals. This latter aspect veterinary-medical epidemiological significance has become especially...

10.1016/j.ttbdis.2022.101936 article EN cc-by Ticks and Tick-borne Diseases 2022-03-07
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