Gerrit J. Viljoen

789 total citations
23 papers, 496 citations indexed

About

Gerrit J. Viljoen is a scholar working on Agronomy and Crop Science, Virology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Gerrit J. Viljoen has authored 23 papers receiving a total of 496 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Agronomy and Crop Science, 6 papers in Virology and 6 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Gerrit J. Viljoen's work include Animal Disease Management and Epidemiology (7 papers), Poxvirus research and outbreaks (6 papers) and Vector-Borne Animal Diseases (6 papers). Gerrit J. Viljoen is often cited by papers focused on Animal Disease Management and Epidemiology (7 papers), Poxvirus research and outbreaks (6 papers) and Vector-Borne Animal Diseases (6 papers). Gerrit J. Viljoen collaborates with scholars based in Austria, South Africa and Italy. Gerrit J. Viljoen's co-authors include David B. Wallace, H. P. S. Makkar, Louis H. Nel, John R. Crowther, Giovanni Cattoli, Rafael Argilés-Herrero, Raffaele Mattioli, Janet Mans, O. Diall and Marc J. B. Vreysen and has published in prestigious journals such as Scientific Reports, Emerging infectious diseases and Journal of Ethnopharmacology.

In The Last Decade

Gerrit J. Viljoen

22 papers receiving 470 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Gerrit J. Viljoen Austria	13	194	103	99	96	80	23	496
Vladimir Polaček Serbia	11	125 0.6×	93 0.9×	80 0.8×	72 0.8×	34 0.4×	54	400
Sidnei Miyoshi Sakamoto Brazil	12	65 0.3×	69 0.7×	93 0.9×	52 0.5×	69 0.9×	39	397
Haroon Akbar Pakistan	14	210 1.1×	101 1.0×	121 1.2×	84 0.9×	34 0.4×	63	597
Lílian Gregory Brazil	12	125 0.6×	27 0.3×	63 0.6×	65 0.7×	80 1.0×	76	596
Neil Dyer United States	15	173 0.9×	22 0.2×	152 1.5×	78 0.8×	59 0.7×	28	580
Przemysław Zięba Poland	19	322 1.7×	44 0.4×	201 2.0×	54 0.6×	48 0.6×	43	695
Soumendu Chakravarti India	16	162 0.8×	34 0.3×	353 3.6×	77 0.8×	147 1.8×	49	689
Sylvester Ochwo Uganda	17	123 0.6×	113 1.1×	176 1.8×	295 3.1×	33 0.4×	39	655
Werner Okano Brazil	11	117 0.6×	23 0.2×	112 1.1×	79 0.8×	58 0.7×	58	412
Mateus de Souza Ribeiro Mioni Brazil	12	72 0.4×	52 0.5×	145 1.5×	86 0.9×	30 0.4×	33	418

Countries citing papers authored by Gerrit J. Viljoen

Since Specialization

Citations

This map shows the geographic impact of Gerrit J. Viljoen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gerrit J. Viljoen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gerrit J. Viljoen more than expected).

Fields of papers citing papers by Gerrit J. Viljoen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerrit J. Viljoen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gerrit J. Viljoen. The network helps show where Gerrit J. Viljoen may publish in the future.

Co-authorship network of co-authors of Gerrit J. Viljoen

This figure shows the co-authorship network connecting the top 25 collaborators of Gerrit J. Viljoen. A scholar is included among the top collaborators of Gerrit J. Viljoen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gerrit J. Viljoen. Gerrit J. Viljoen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Mpoloka, Sununguko Wata, et al.. (2024). Molecular Testing of Zoonotic Bacteria in Cattle, Sheep, and Goat Abortion Cases in Botswana. Microorganisms. 12(12). 2644–2644.

Mpoloka, Sununguko Wata, Tirumala Bharani K. Settypalli, Alda Natale, et al.. (2023). A novel multiplex qPCR‑HRM assay for the simultaneous detection of four abortive zoonotic agents in cattle, sheep, and goats. Scientific Reports. 13(1). 12282–12282. 4 indexed citations

Viljoen, Gerrit J., et al.. (2021). Nuclear and Radiological Emergencies in Animal Production Systems, Preparedness, Response and Recovery. OAPEN (The OAPEN Foundation). 3 indexed citations

Settypalli, Tirumala Bharani K., et al.. (2021). First molecular characterization of poxviruses in cattle, sheep, and goats in Botswana. Virology Journal. 18(1). 167–167. 13 indexed citations

Pawęska, Janusz T., Petrus Jansen van Vuren, Veerle Msimang, et al.. (2021). Large-Scale International Validation of an Indirect ELISA Based on Recombinant Nucleocapsid Protein of Rift Valley Fever Virus for the Detection of IgG Antibody in Domestic Ruminants. Viruses. 13(8). 1651–1651. 4 indexed citations

Viljoen, Gerrit J., et al.. (2018). Molecular characterization of avipoxviruses circulating in Mozambique, 2016-2018. Archives of Virology. 163(8). 2245–2251. 6 indexed citations

Gelaye, Esayas, et al.. (2017). Identification of Clade E Avipoxvirus, Mozambique, 2016. Emerging infectious diseases. 23(9). 1602–1604. 12 indexed citations

Diall, O., Giuliano Cecchi, Rafael Argilés-Herrero, et al.. (2017). Developing a Progressive Control Pathway for African Animal Trypanosomosis. Trends in Parasitology. 33(7). 499–509. 91 indexed citations

Viljoen, Gerrit J., et al.. (2016). Phylogenetic analysis of Newcastle disease viruses isolated from commercial poultry in Mozambique (2011–2016). Virus Genes. 52(5). 748–753. 17 indexed citations

10.

Viljoen, Gerrit J. & A.G. Luckins. (2012). The role of nuclear technologies in the diagnosis and control of livestock diseases—a review. Tropical Animal Health and Production. 44(7). 1341–1366. 6 indexed citations

11.

Diallo, Adama, et al.. (2010). Early, rapid and sensitive veterinary molecular diagnostics - real time PCR applications. Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)). 33 indexed citations

12.

Bélak, Sándor, Peter Thorén, Neil LeBlanc, & Gerrit J. Viljoen. (2009). Advances in viral disease diagnostic and molecular epidemiological technologies. Expert Review of Molecular Diagnostics. 9(4). 367–381. 27 indexed citations

13.

Weyer, Jacqueline, Charles E. Rupprecht, Janet Mans, Gerrit J. Viljoen, & Louis H. Nel. (2007). Generation and evaluation of a recombinant modified vaccinia virus Ankara vaccine for rabies. Vaccine. 25(21). 4213–4222. 24 indexed citations

14.

Wallace, David B., Jacqueline Weyer, Louis H. Nel, & Gerrit J. Viljoen. (2007). Improved method for the generation and selection of homogeneous lumpy skin disease virus (SA-Neethling) recombinants. Journal of Virological Methods. 146(1-2). 52–60. 17 indexed citations

15.

Makkar, H. P. S. & Gerrit J. Viljoen. (2005). Applications of Gene-Based Technologies for Improving Animal Production and Health in Developing Countries. Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)). 51 indexed citations

16.

Lamien, Charles Euloge, et al.. (2004). Inhibition of fowlpox virus by an aqueous acetone extract from galls of Guiera senegalensis J. F. Gmel (Combretaceae). Journal of Ethnopharmacology. 96(1-2). 249–253. 29 indexed citations

17.

Wallace, David B. & Gerrit J. Viljoen. (2004). Immune responses to recombinants of the South African vaccine strain of lumpy skin disease virus generated by using thymidine kinase gene insertion. Vaccine. 23(23). 3061–3067. 50 indexed citations

18.

Viljoen, Gerrit J., et al.. (1991). The prevalence, risks, and management of Chlamydia trachomatis infections in fertile and infertile patients from the high socioeconomic bracket of the South African population. Fertility and Sterility. 56(3). 485–488. 10 indexed citations

19.

Vermeulen, Nico, Gerrit J. Viljoen, J D Bezuidenhout, Leon Visser, & A.W.H. Neitz. (1988). Kinetic properties of toxic protease inhibitors isolated from tick eggs. International Journal of Biochemistry. 20(6). 621–631. 9 indexed citations

20.

Viljoen, Gerrit J., J D Bezuidenhout, Nico Vermeulen, et al.. (1986). Isolation of a Neurotoxin from the Salivary Glands of Female Rhipicephalus evertsi evertsi. Journal of Parasitology. 72(6). 865–865. 26 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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