Esper G. Kallás

20.3k total citations · 1 hit paper
231 papers, 7.4k citations indexed

About

Esper G. Kallás is a scholar working on Infectious Diseases, Immunology and Epidemiology. According to data from OpenAlex, Esper G. Kallás has authored 231 papers receiving a total of 7.4k indexed citations (citations by other indexed papers that have themselves been cited), including 109 papers in Infectious Diseases, 86 papers in Immunology and 82 papers in Epidemiology. Recurrent topics in Esper G. Kallás's work include HIV Research and Treatment (68 papers), Immune Cell Function and Interaction (57 papers) and HIV/AIDS Research and Interventions (43 papers). Esper G. Kallás is often cited by papers focused on HIV Research and Treatment (68 papers), Immune Cell Function and Interaction (57 papers) and HIV/AIDS Research and Interventions (43 papers). Esper G. Kallás collaborates with scholars based in Brazil, United States and South Africa. Esper G. Kallás's co-authors include Robert M. Grant, David V. Glidden, Vanessa McMahan, Karina I. Carvalho, Juan V. Guanira, Albert Liu, Kenneth H. Mayer, Suwat Chariyalertsak, Valdiléa G. Veloso and Douglas F. Nixon and has published in prestigious journals such as Cell, Proceedings of the National Academy of Sciences and Nature Medicine.

In The Last Decade

Esper G. Kallás

225 papers receiving 7.2k citations

Hit Papers

Emtricitabine-Tenofovir Concentrations and Pre-Exposure P... 2012 2026 2016 2021 2012 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Emtricitabine-Tenofovir Concentrations and Pre-Exposure Prophylaxis Efficacy in Men Who Have Sex with Men
    2012 760 citations Valdiléa G. Veloso, Esper G. Kallás et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Esper G. Kallás Brazil 47 3.6k 2.4k 2.1k 1.8k 1.0k 231 7.4k
Michael Marmor United States 48 3.1k 0.9× 3.1k 1.3× 1.2k 0.6× 2.1k 1.1× 1.0k 1.0× 118 7.8k
Mark J. Mulligan United States 46 3.6k 1.0× 3.2k 1.3× 3.2k 1.5× 2.4k 1.3× 1.5k 1.5× 150 8.5k
Robert J. Biggar United States 63 4.0k 1.1× 4.9k 2.1× 2.1k 1.0× 2.0k 1.1× 721 0.7× 237 13.0k
Walid Heneine United States 54 6.3k 1.8× 3.1k 1.3× 1.7k 0.8× 5.7k 3.1× 730 0.7× 228 11.7k
Merlin L. Robb United States 45 4.0k 1.1× 1.8k 0.8× 2.4k 1.2× 4.8k 2.7× 855 0.9× 249 7.8k
Susan J. Little United States 59 7.9k 2.2× 3.7k 1.6× 2.4k 1.1× 8.3k 4.6× 635 0.6× 250 12.3k
Thomas M. Folks United States 47 3.4k 0.9× 2.3k 1.0× 2.8k 1.3× 4.6k 2.5× 571 0.6× 122 8.9k
Ramesh Paranjape India 36 4.1k 1.2× 2.5k 1.1× 594 0.3× 2.0k 1.1× 334 0.3× 192 6.5k
Praphan Phanuphak Thailand 45 4.7k 1.3× 2.8k 1.2× 637 0.3× 2.8k 1.5× 419 0.4× 276 7.4k
Ian Frank United States 53 3.5k 1.0× 2.9k 1.2× 2.8k 1.4× 3.9k 2.1× 416 0.4× 157 9.5k

Countries citing papers authored by Esper G. Kallás

Since Specialization
Citations

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

Fields of papers citing papers by Esper G. Kallás

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Esper G. Kallás. 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 Esper G. Kallás. The network helps show where Esper G. Kallás may publish in the future.

Co-authorship network of co-authors of Esper G. Kallás

This figure shows the co-authorship network connecting the top 25 collaborators of Esper G. Kallás. A scholar is included among the top collaborators of Esper G. Kallás 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 Esper G. Kallás. Esper G. Kallás 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.
Ferreira, Noely Evangelista, Michael G. Berg, Antônio Charlys da Costa, et al.. (2025). Metagenomic detection of central nervous system infections missedby conventional testing. JCI Insight. 10(13). 1 indexed citations
2.
Izmirly, Abdullah M., Mark A. Watson, Tiziana Di Pucchio, et al.. (2024). A pre-vaccination immune metabolic interplay determines the protective antibody response to a dengue virus vaccine. Cell Reports. 43(7). 114370–114370.
3.
Ramacciotti, Eduardo, Leandro Barile Agati, Fernando Crivelenti Vilar, et al.. (2023). Efficacy and safety of Ixekizumab vs. low-dose IL-2 vs. Colchicine vs. standard of care in the treatment of patients hospitalized with moderate-to-critical COVID-19: A pilot randomized clinical trial (STRUCK: Survival Trial Using Cytokine Inhibitors). Revista da Sociedade Brasileira de Medicina Tropical. 56. e0565–e0565. 7 indexed citations
4.
Costa, Priscilla R., et al.. (2023). Expression of TIGIT, PD-1 and HLA-DR/CD38 markers on CD8-T cells of children and adolescents infected with HIV and uninfected controls. Revista do Instituto de Medicina Tropical de São Paulo. 65. e14–e14. 4 indexed citations
5.
Oliveira, Léa Campos de, Erika R. Manuli, Fabrício Klerynton Marchini, et al.. (2022). Evaluation of eleven immunochromatographic assays for SARS-CoV-2 detection: investigating the dengue cross-reaction. Revista do Instituto de Medicina Tropical de São Paulo. 64. e63–e63. 1 indexed citations
6.
Veloso, Valdiléa G., Brenda Hoagland, Nilo Martinez Fernandes, et al.. (2021). Possible risk compensation, attitudes, and beliefs among Brazilian individuals potentially eligible for pre-exposure prophylaxis. International Journal of STD & AIDS. 32(9). 806–815. 2 indexed citations
7.
Dalçóquio, Talia Falcão, Rocío Salsoso, Remo Holanda de Mendonça Furtado, et al.. (2021). Platelet Reactivity and Coagulation Markers in Patients with COVID-19. Advances in Therapy. 38(7). 3911–3923. 21 indexed citations
8.
Marins, Luana M. S., Thiago S. Torres, Paula M. Luz, et al.. (2021). Factors associated with self-reported adherence to daily oral pre-exposure prophylaxis among men who have sex with man and transgender women: PrEP Brasil study. International Journal of STD & AIDS. 32(13). 1231–1241. 12 indexed citations
9.
Costa, Priscilla R., Ana Cristina Cisne Frota, Cristina Barroso Hofer, et al.. (2021). Association between circulating exhausted CD4+ T cells with poor meningococcal C conjugate vaccine antibody response in HIV-infected children and adolescents. Clinics. 76. e2902–e2902. 1 indexed citations
10.
Cerqueira, Natália B., Ricardo Vasconcelos, J. Carlo Hojilla, Esper G. Kallás, & Vivian I. Avelino‐Silva. (2020). Attitudes and Knowledge About Human Immunodeficiency Virus Pre-Exposure Prophylaxis Among Brazilian Infectious Disease Physicians. AIDS Research and Human Retroviruses. 36(12). 1047–1053. 4 indexed citations
11.
Vieira, Vinícius, et al.. (2017). Conserved HIV-1 Gag p24 Epitopes Elicit Cellular Immune Responses That Impact Disease Outcome. AIDS Research and Human Retroviruses. 33(8). 832–842. 3 indexed citations
12.
Kuebler, Peter, Brian I. Shaw, Megha Mehrotra, et al.. (2015). Brief Report. JAIDS Journal of Acquired Immune Deficiency Syndromes. 72(2). 184–188. 1 indexed citations
13.
Milagres, Lucimar G., Priscilla R. Costa, Karina I. Carvalho, et al.. (2014). Subsets of Memory CD4+ T Cell and Bactericidal Antibody Response to Neisseria meningitidis Serogroup C after Immunization of HIV-Infected Children and Adolescents. PLoS ONE. 9(12). e115887–e115887. 25 indexed citations
14.
Weg, Cornelia A. M. van de, Cláudio Mendes Pannuti, Henk‐Jan van den Ham, et al.. (2014). Serum angiopoietin-2 and soluble VEGF receptor 2 are surrogate markers for plasma leakage in patients with acute dengue virus infection. Journal of Clinical Virology. 60(4). 328–335. 51 indexed citations
15.
Sanabani, Sabri Saeed, Susan Pereira Ribeiro, Mariana M. Sauer, et al.. (2013). Short Communication: HIV Type 1 Subtype BF Leads to Faster CD4 + T Cell Loss Compared to Subtype B. AIDS Research and Human Retroviruses. 30(2). 190–194. 12 indexed citations
16.
Long, Brian, Joan M. Chapman, Jason D. Barbour, et al.. (2009). Increased number and function of natural killer cells in human immunodeficiency virus 1‐positive subjects co‐infected with herpes simplex virus 2. Immunology. 129(2). 186–196. 12 indexed citations
17.
Kallás, Esper G., Sabri Saeed Sanabani, Éster Cerdeira Sabino, et al.. (2007). Characterization of the Full-Length Human Immunodeficiency Virus-1 Genome from Recently Infected Subjects in Brazil. AIDS Research and Human Retroviruses. 23(9). 1087–1094. 9 indexed citations
18.
Costa, Luciana Jesus da, et al.. (2005). Duplication of Peri-κB and NF-κB Sites of the First Human Immunodeficiency Virus Type 2 (HIV-2) Transmission in Brazil. AIDS Research and Human Retroviruses. 21(11). 965–970. 7 indexed citations
19.
Kallás, Esper G., et al.. (2004). Cell cycle distribution of CD4+ lymphocytes in HIV‐1–infected subjects. Cytometry Part B Clinical Cytometry. 62B(1). 46–51. 2 indexed citations
20.
Brunialti, Milena Karina Coló, Esper G. Kallás, Marina A. Freudenberg, Chris Galanos, & Reinaldo Salomão. (2002). Influence of EDTA and heparin on lipopolysaccharide binding and cell activation, evaluated at single‐cell level in whole blood. Cytometry. 50(1). 14–18. 27 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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