Helga Waap

553 total citations
23 papers, 399 citations indexed

About

Helga Waap is a scholar working on Parasitology, Epidemiology and Virology. According to data from OpenAlex, Helga Waap has authored 23 papers receiving a total of 399 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Parasitology, 8 papers in Epidemiology and 5 papers in Virology. Recurrent topics in Helga Waap's work include Toxoplasma gondii Research Studies (16 papers), Parasitic Infections and Diagnostics (11 papers) and Herpesvirus Infections and Treatments (7 papers). Helga Waap is often cited by papers focused on Toxoplasma gondii Research Studies (16 papers), Parasitic Infections and Diagnostics (11 papers) and Herpesvirus Infections and Treatments (7 papers). Helga Waap collaborates with scholars based in Portugal, Netherlands and Brazil. Helga Waap's co-authors include Telmo Nunes, Alexandre Leitão, João Paulo Gomes, Hélder Cortes, Yolanda Vaz, Jacinto Gomes, Rubén Vidal, Helena Soares, Maria João Gargaté and Isabel Marques and has published in prestigious journals such as International Journal for Parasitology, Veterinary Microbiology and Veterinary Parasitology.

In The Last Decade

Helga Waap

22 papers receiving 396 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helga Waap Portugal 14 344 115 78 68 52 23 399
Mariem Rouatbi Tunisia 11 238 0.7× 96 0.8× 59 0.8× 33 0.5× 30 0.6× 24 316
Anderson Barbosa de Moura Brazil 14 530 1.5× 223 1.9× 110 1.4× 86 1.3× 47 0.9× 77 612
P. Duncanson United Kingdom 8 357 1.0× 159 1.4× 66 0.8× 46 0.7× 31 0.6× 8 436
Batol Al‐Adhami Canada 12 295 0.9× 83 0.7× 108 1.4× 57 0.8× 54 1.0× 22 374
H. Haddadzadeh Iran 11 375 1.1× 96 0.8× 151 1.9× 76 1.1× 80 1.5× 15 418
Nongnuch Pinyopanuwat Thailand 12 331 1.0× 133 1.2× 128 1.6× 86 1.3× 24 0.5× 28 392
Chanya Kengradomkij Thailand 11 200 0.6× 87 0.8× 128 1.6× 25 0.4× 68 1.3× 34 302
Leonilda Correia dos Santos Brazil 15 295 0.9× 64 0.6× 130 1.7× 66 1.0× 33 0.6× 29 383
Amélia Aparecida Sartor Brazil 11 311 0.9× 72 0.6× 101 1.3× 33 0.5× 44 0.8× 46 398
Felipe Fornazari Brazil 14 323 0.9× 128 1.1× 122 1.6× 66 1.0× 26 0.5× 46 433

Countries citing papers authored by Helga Waap

Since Specialization
Citations

This map shows the geographic impact of Helga Waap'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 Helga Waap with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helga Waap more than expected).

Fields of papers citing papers by Helga Waap

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helga Waap. 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 Helga Waap. The network helps show where Helga Waap may publish in the future.

Co-authorship network of co-authors of Helga Waap

This figure shows the co-authorship network connecting the top 25 collaborators of Helga Waap. A scholar is included among the top collaborators of Helga Waap 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 Helga Waap. Helga Waap is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Carolino, N., et al.. (2025). Retrospective study of bovine besnoitiosis in the Auvergne Rhône-Alpes region in France. Frontiers in Veterinary Science. 12. 1621589–1621589.
2.
Benavides, Júlio, Leonor Orge, Paula Mendonça, et al.. (2023). Fatal toxoplasmosis in a captive squirrel monkey (Saimiri boliviensis) in Portugal. Veterinary Research Communications. 47(4). 2363–2370. 1 indexed citations
3.
Swart, Arno, Helga Waap, Pikka Jokelainen, et al.. (2023). Systematic Review and Modelling of Age-Dependent Prevalence of Toxoplasma gondii in Livestock, Wildlife and Felids in Europe. Pathogens. 12(1). 97–97. 20 indexed citations
4.
Spriggs, Maria, et al.. (2023). Isolation of Toxoplasma gondii in cell culture: an alternative to bioassay. International Journal for Parasitology. 54(3-4). 131–137. 5 indexed citations
5.
Waap, Helga, Andrea Bärwald, Telmo Nunes, & Gereon Schares. (2022). Seroprevalence and Risk Factors for Toxoplasma gondii and Neospora caninum in Cattle in Portugal. Animals. 12(16). 2080–2080. 4 indexed citations
6.
Schares, Gereon, Chiara Trevisan, Heidi L. Enemark, et al.. (2020). Mathematical modelling of Toxoplasma gondii transmission: A systematic review. Food and Waterborne Parasitology. 22. e00102–e00102. 17 indexed citations
7.
Waap, Helga, et al.. (2020). Case Report: Human Dermatitis Linked to Ornithonyssus bursa (Dermanyssoidea: Macronyssidae) Infestation in Portugal. Frontiers in Veterinary Science. 7. 567902–567902. 5 indexed citations
8.
Waap, Helga, et al.. (2017). Occurrence of Ornithonyssus sylviarum in pet birds from the district of Setúbal, Portugal. Parasitology Research. 116(7). 2041–2046. 4 indexed citations
9.
Heneberg, Petr, et al.. (2017). An outbreak of philophthalmosis in Larus michahellis and Larus fuscus gulls in Iberian Peninsula. Parasitology International. 67(2). 253–261. 14 indexed citations
10.
Waap, Helga, Telmo Nunes, Yolanda Vaz, & Alexandre Leitão. (2017). Serological study of Neospora caninum in dogs and wildlife in a nature conservation area in southern Portugal. 3. 4 indexed citations
11.
Barros, Sílvia C., Fernanda Ramos, Teresa Fagulha, et al.. (2017). West Nile virus in horses during the summer and autumn seasons of 2015 and 2016, Portugal. Veterinary Microbiology. 212. 75–79. 14 indexed citations
12.
Waap, Helga, Telmo Nunes, Yolanda Vaz, & Alexandre Leitão. (2016). Serological survey of Toxoplasma gondii and Besnoitia besnoiti in a wildlife conservation area in southern Portugal. Veterinary Parasitology Regional Studies and Reports. 3-4. 7–12. 20 indexed citations
13.
Stekolnikov, Alexandr A., et al.. (2016). Chigger mites of the genus Ericotrombidium (Acariformes: Trombiculidae) attacking pets in Europe. Veterinary Parasitology. 221. 60–63. 20 indexed citations
14.
Gargaté, Maria João, et al.. (2014). Isolation and molecular characterization of Toxoplasma gondii isolated from pigeons and stray cats in Lisbon, Portugal. Veterinary Parasitology. 205(3-4). 506–511. 22 indexed citations
15.
Waap, Helga, Telmo Nunes, Hélder Cortes, Alexandre Leitão, & Yolanda Vaz. (2014). Prevalence and geographic distribution of Besnoitia besnoiti infection in cattle herds in Portugal. Parasitology Research. 113(10). 3703–3711. 23 indexed citations
16.
Waap, Helga, João Paulo Gomes, & Telmo Nunes. (2013). Parasite communities in stray cat populations from Lisbon, Portugal. Journal of Helminthology. 88(4). 389–395. 49 indexed citations
17.
Waap, Helga, Alexandre Leitão, Telmo Nunes, et al.. (2012). In vitro isolation and seroprevalence of Toxoplasma gondii in stray cats and pigeons in Lisbon, Portugal. Veterinary Parasitology. 187(3-4). 542–547. 26 indexed citations
18.
Waap, Helga, et al.. (2011). A modified agglutination test for the diagnosis of Besnoitia besnoiti infection. Veterinary Parasitology. 178(3-4). 217–222. 15 indexed citations
19.
Waap, Helga, et al.. (2008). Epidemiological and genetic characterization of Toxoplasma gondii in urban pigeons from the area of Lisbon (Portugal). Veterinary Parasitology. 157(3-4). 306–309. 28 indexed citations
20.
Cortes, Hélder, Helga Waap, Rubén Vidal, et al.. (2006). Isolation of Besnoitia besnoiti from infected cattle in Portugal. Veterinary Parasitology. 141(3-4). 226–233. 77 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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