Sándor Hornok


Country: Hungary


  1. request reprint
    Hornok S, Edelhofer R, Szotáczky I, Hajtós I. Babesia divergens becoming extinct in cattle of Northeast Hungary: new data on the past and present situation. Acta Vet Hung. 2006;54:493-501 pubmed
    ..g. increase of annual sunlight hours in the endemic area). This is the first report on the prevalence of antibodies to B. divergens in cattle in Hungary. ..
  2. Hornok S, Földvári G, Elek V, Naranjo V, Farkas R, De La Fuente J. Molecular identification of Anaplasma marginale and rickettsial endosymbionts in blood-sucking flies (Diptera: Tabanidae, Muscidae) and hard ticks (Acari: Ixodidae). Vet Parasitol. 2008;154:354-9 pubmed publisher
    ..bovinus in the transmission of A. marginale, and broaden the range of haematophagous arthropods harbouring Midichloria-like bacteria, for the first time in any Dermacentor or Tabanus species...
  3. Hornok S, Horvath G, Jongejan F, Farkas R. Ixodid ticks on ruminants, with on-host initiated moulting (apolysis) of Ixodes, Haemaphysalis and Dermacentor larvae. Vet Parasitol. 2012;187:350-3 pubmed publisher
    ..This is the first survey involving four species of domestic and wild ruminants in Europe to compare the host-preference of ixodid ticks in the same region...
  4. Hornok S, Mester A, Takács N, Fernández de Mera I, de la Fuente J, Farkas R. Re-emergence of bovine piroplasmosis in Hungary: has the etiological role of Babesia divergens been taken over by B. major and Theileria buffeli?. Parasit Vectors. 2014;7:434 pubmed publisher
    ..phagocytophilum could not be established in the disease cases. In this study B. major and bovine theileriosis is reported for the first time in central-eastern Europe, where clinical cases were associated with a mild winter. ..
  5. Hornok S, Fedák A, Baska F, Basso W, Dencső L, Tóth G, et al. Vector-borne transmission of Besnoitia besnoiti by blood-sucking and secretophagous flies: epidemiological and clinicopathological implications. Parasit Vectors. 2015;8:450 pubmed publisher
    ..Adding to the already known mechanical transmission of B. besnoiti by blood-sucking flies, results of the present study suggest that secretophagous flies should also be evaluated as potential vectors of this coccidium species. ..
  6. Hornok S, Estók P, Kováts D, Flaisz B, Takács N, Szőke K, et al. Screening of bat faeces for arthropod-borne apicomplexan protozoa: Babesia canis and Besnoitia besnoiti-like sequences from Chiroptera. Parasit Vectors. 2015;8:441 pubmed publisher
    ..e. the potential role of insect-borne mechanical transmission and/or the susceptibility of bats to Ba. canis. In addition, bats need to be added to future studies in the quest for the final host of Be. besnoiti. ..
  7. Farkas R, Takács N, Hornyák Ã, Nachum Biala Y, Hornok S, Baneth G. First report on Babesia cf. microti infection of red foxes (Vulpes vulpes) from Hungary. Parasit Vectors. 2015;8:55 pubmed publisher
    ..Further studies are needed to identify the tick species involved in its transmission, and whether other mechanisms of transmission are involved in its spread in fox populations. ..
  8. request reprint
    Hornok S, Edelhofer R, Farkas R. Seroprevalence of canine babesiosis in Hungary suggesting breed predisposition. Parasitol Res. 2006;99:638-42 pubmed
    ..On the other hand, heavy-coated komondors are phenotypically more suitable for repeated exposure to ticks, potentially infected with B. canis. This is the first report on the seroprevalence of canine babesiosis in Hungary. ..
  9. Hornok S, Estrada Peña A, Kontschán J, Plantard O, Kunz B, Mihalca A, et al. High degree of mitochondrial gene heterogeneity in the bat tick species Ixodes vespertilionis, I. ariadnae and I. simplex from Eurasia. Parasit Vectors. 2015;8:457 pubmed publisher
    ..Data of this study also reflect that I. vespertilionis may represent a species complex. ..

More Information


  1. Hornok S, Földvári G, Rigó K, Meli M, Gönczi E, Répási A, et al. Synanthropic rodents and their ectoparasites as carriers of a novel haemoplasma and vector-borne, zoonotic pathogens indoors. Parasit Vectors. 2015;8:27 pubmed publisher
    ..l. and Bartonella sp. was also noted in rodents and/or their ectoparasites. These results indicate that synanthropic rodents, although with low prevalence, may carry zoonotic and vector-borne pathogens indoors. ..
  2. Hornok S, Edelhofer R, Földvári G, Joachim A, Farkas R. Serological evidence for Babesia canis infection of horses and an endemic focus of B. caballi in Hungary. Acta Vet Hung. 2007;55:491-500 pubmed publisher
    ..This is the first serological evidence of horses being naturally infected with B. canis, supporting the view that piroplasms are less host specific than previously thought. ..
  3. Hornok S, Mester A, Takács N, Baska F, Majoros G, Fok Ã, et al. Sarcocystis-infection of cattle in Hungary. Parasit Vectors. 2015;8:69 pubmed publisher
    ..hominis. However, the rate of infection with both species was shown to differ between cattle breeds. The suspected role of Sarcocystis spp. as causative agents of the fatal cases could not be confirmed. ..
  4. Hornok S, Kontschán J, Estrada Peña A, de Mera I, Tomanović S, de la Fuente J. Contributions to the morphology and phylogeny of the newly discovered bat tick species, Ixodes ariadnae in comparison with I. vespertilionis and I. simplex. Parasit Vectors. 2015;8:47 pubmed publisher
    ..The present study illustrates the morphology and clarifies the phylogenetic relationships of the three known bat tick species that occur in Europe. According to its subolesin gene I. ariadnae may have a long evolutionary history. ..
  5. Hornok S, Meli M, Gönczi E, Ignits E, Willi B, Lutz H, et al. First molecular identification of 'Candidatus mycoplasma haemominutum' from a cat with fatal haemolytic anaemia in Hungary. Acta Vet Hung. 2008;56:441-50 pubmed publisher
    ..This is the first record of this feline haemoplasma species in Hungary. ..
  6. Hornok S, Kartali K, Takács N, Hofmann Lehmann R. Uneven seasonal distribution of Babesia canis and its two 18S rDNA genotypes in questing Dermacentor reticulatus ticks in urban habitats. Ticks Tick Borne Dis. 2016;7:694-697 pubmed publisher
    ..e. early in the questing season. It was also observed that the temporal distribution of D. reticulatus ticks carrying different B. canis genotypes was not random. ..
  7. Hornok S, Takács N, Kontschán J, György Z, Micsutka A, Iceton S, et al. Diversity of Haemaphysalis-associated piroplasms of ruminants in Central-Eastern Europe, Hungary. Parasit Vectors. 2015;8:627 pubmed publisher
    ..Although bovine babesiosis and theileriosis was known to occur in Hungary, molecular evidence is provided here for the first time on the presence of Babesia and/or Theileria spp. of sheep, goats and cervids in Hungary. ..
  8. Hornok S, Görföl T, Estók P, Tu V, Kontschán J. Description of a new tick species, Ixodes collaris n. sp. (Acari: Ixodidae), from bats (Chiroptera: Hipposideridae, Rhinolophidae) in Vietnam. Parasit Vectors. 2016;9:332 pubmed publisher
    ..The genetic and morphological differences between I. vespertilionis Koch, 1844 and these bat ticks from Vietnam justify the status of the latter as a distinct species, Ixodes collaris Hornok n. sp. ..
  9. Hornok S, Flaisz B, Takács N, Kontschán J, CsörgÅ‘ T, Csipak Ã, et al. Bird ticks in Hungary reflect western, southern, eastern flyway connections and two genetic lineages of Ixodes frontalis and Haemaphysalis concinna. Parasit Vectors. 2016;9:101 pubmed publisher
    ..These findings highlight the importance of western and eastern migratory connections by birds (in addition to the southern direction), which are also relevant to the epidemiology of tick-borne diseases. ..
  10. Hornok S, Tánczos B, Fernandez de Mera I, De La Fuente J, Hofmann Lehmann R, Farkas R. High prevalence of Hepatozoon-infection among shepherd dogs in a region considered to be free of Rhipicephalus sanguineus. Vet Parasitol. 2013;196:189-93 pubmed publisher
    ..concinna ticks. Canine hepatozoonosis was significantly more prevalent west of the Danube river (where higher densities of red fox and golden jackal populations occur), suggesting a role of wild carnivores in its epidemiology. ..
  11. Hornok S, Csörgo T, De La Fuente J, Gyuranecz M, Privigyei C, Meli M, et al. Synanthropic birds associated with high prevalence of tick-borne rickettsiae and with the first detection of Rickettsia aeschlimannii in Hungary. Vector Borne Zoonotic Dis. 2013;13:77-83 pubmed publisher
    ..Thus, it can be concluded that birds with urban or periurban habitats pose a high risk as tick carriers and reservoirs of zoonotic agents, especially of rickettsiae...
  12. Hornok S, Micsutka A, Meli M, Lutz H, Hofmann Lehmann R. Molecular investigation of transplacental and vector-borne transmission of bovine haemoplasmas. Vet Microbiol. 2011;152:411-4 pubmed publisher
    ..Regarding their spread by blood-sucking arthropods, new potential vectors were identified, i.e. the horn fly (Haematobia irritans), the stable fly (Stomoxys calcitrans) and two species of horse flies (Tabanus bovinus, T. bromius)...
  13. Hornok S, Hofmann Lehmann R, de Mera I, Meli M, Elek V, Hajtós I, et al. Survey on blood-sucking lice (Phthiraptera: Anoplura) of ruminants and pigs with molecular detection of Anaplasma and Rickettsia spp. Vet Parasitol. 2010;174:355-8 pubmed publisher
    ..in L. vituli, L. stenopsis and H. suis. The present results suggest that phthirapterosis of domestic animals deserves more attention, and lice should be evaluated among the broad range of potential vectors of arthropod-borne pathogens...
  14. Hornok S, Denes B, Meli M, Tánczos B, Fekete L, Gyuranecz M, et al. Non-pet dogs as sentinels and potential synanthropic reservoirs of tick-borne and zoonotic bacteria. Vet Microbiol. 2013;167:700-3 pubmed publisher
  15. Hornok S, Micsutka A, Fernandez de Mera I, Meli M, Gönczi E, Tanczos B, et al. Fatal bovine anaplasmosis in a herd with new genotypes of Anaplasma marginale, Anaplasma ovis and concurrent haemoplasmosis. Res Vet Sci. 2012;92:30-5 pubmed publisher
    ..This is the first report of fatal bovine anaplasmosis associated with divergent A. marginale genotypes and concurrent 'CandidatusM. haemobos' infection, as well as of an A. ovis strain in ticks collected from cattle...
  16. Hornok S, Meli M, Perreten A, Farkas R, Willi B, Beugnet F, et al. Molecular investigation of hard ticks (Acari: Ixodidae) and fleas (Siphonaptera: Pulicidae) as potential vectors of rickettsial and mycoplasmal agents. Vet Microbiol. 2010;140:98-104 pubmed publisher
    ..in D. marginatus and fleas. In conclusion, this molecular study extends the geographic range and vector spectrum of several arthropod-borne agents, some of which have zoonotic potential...
  17. Hornok S, Meli M, Erdos A, Hajtós I, Lutz H, Hofmann Lehmann R. Molecular characterization of two different strains of haemotropic mycoplasmas from a sheep flock with fatal haemolytic anaemia and concomitant Anaplasma ovis infection. Vet Microbiol. 2009;136:372-7 pubmed publisher
    ..In conclusion, this is the first study to demonstrate the existence of and characterize two genetically distinct ovine haemotropic mycoplasma strains in a sheep flock with fatal haemolytic anaemia...
  18. Hornok S, Edelhofer R, Joachim A, Farkas R, Berta K, Répási A, et al. Seroprevalence of Toxoplasma gondii and Neospora caninum infection of cats in Hungary. Acta Vet Hung. 2008;56:81-8 pubmed publisher
    ..Higher titres to T. gondii were more frequently detected among FIP-positive cats, but this difference was non-significant due to the small number of cats with concurrent infection...
  19. request reprint
    Hornok S, Elek V, De La Fuente J, Naranjo V, Farkas R, Majoros G, et al. First serological and molecular evidence on the endemicity of Anaplasma ovis and A. marginale in Hungary. Vet Microbiol. 2007;122:316-22 pubmed
    ..reticulatus, with the dominance of the first. The present data extend the northern latitude in the geographical occurrence of ovine anaplasmosis in Europe and reveal the endemicity of A. ovis and A. marginale in Hungary...