Marco Ajelli

17.7k total citations · 5 hit papers
128 papers, 8.6k citations indexed

About

Marco Ajelli is a scholar working on Modeling and Simulation, Infectious Diseases and Epidemiology. According to data from OpenAlex, Marco Ajelli has authored 128 papers receiving a total of 8.6k indexed citations (citations by other indexed papers that have themselves been cited), including 106 papers in Modeling and Simulation, 68 papers in Infectious Diseases and 45 papers in Epidemiology. Recurrent topics in Marco Ajelli's work include COVID-19 epidemiological studies (106 papers), SARS-CoV-2 and COVID-19 Research (37 papers) and Influenza Virus Research Studies (28 papers). Marco Ajelli is often cited by papers focused on COVID-19 epidemiological studies (106 papers), SARS-CoV-2 and COVID-19 Research (37 papers) and Influenza Virus Research Studies (28 papers). Marco Ajelli collaborates with scholars based in United States, Italy and China. Marco Ajelli's co-authors include Stefano Merler, Alessandro Vespignani, Maria Litvinova, Hongjie Yu, Cécile Viboud, Ana Pastore y Piontti, Ira M. Longini, Piero Poletti, Matteo Chinazzi and M. Elizabeth Halloran and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Marco Ajelli

118 papers receiving 8.4k citations

Hit Papers

5 papers align trajectories

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.

The effect of travel restrictions on the spread of the 2019 novel coronavirus (COVID-19) outbreak

2020 2.4k citations Matteo Chinazzi, Jessica T. Davis et al. Science profile →
Changes in contact patterns shape the dynamics of the COVID-19 outbreak in China

2020 732 citations Juanjuan Zhang, Maria Litvinova et al. Science profile →
Modelling the impact of testing, contact tracing and household quarantine on second waves of COVID-19

2020 519 citations Alberto Aleta, David Martín-Corral et al. Nature Human Behaviour profile →
Modeling transmission of SARS-CoV-2 Omicron in China

2022 175 citations Xiaowei Deng, Juan Yang et al. profile →
Evaluation of Waning of SARS-CoV-2 Vaccine–Induced Immunity

2023 137 citations Mattia Manica, Agnese Zardini et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Marco Ajelli United States	42	5.6k	2.8k	2.1k	1.6k	1.2k	128	8.6k
Stefano Merler Italy	46	5.1k 0.9×	2.6k 0.9×	2.2k 1.0×	1.5k 0.9×	1.6k 1.4×	157	9.2k
Lauren Ancel Meyers United States	48	3.8k 0.7×	2.1k 0.8×	1.8k 0.9×	867 0.5×	1.5k 1.3×	162	9.7k
M. Elizabeth Halloran United States	49	6.5k 1.2×	4.4k 1.6×	4.6k 2.2×	1.6k 1.0×	2.5k 2.2×	161	13.0k
Hongjie Yu China	55	5.2k 0.9×	5.7k 2.0×	4.7k 2.2×	2.0k 1.2×	2.0k 1.7×	436	16.3k
Joseph T. Wu Hong Kong	44	4.9k 0.9×	4.9k 1.7×	3.0k 1.4×	1.6k 1.0×	920 0.8×	153	11.1k
Philippe Beutels Belgium	51	3.7k 0.7×	2.9k 1.0×	4.6k 2.2×	1.6k 1.0×	1.5k 1.3×	334	10.8k
Jacco Wallinga Netherlands	48	6.0k 1.1×	3.6k 1.3×	4.8k 2.2×	1.1k 0.7×	1.5k 1.2×	209	11.0k
Niel Hens Belgium	50	4.0k 0.7×	2.8k 1.0×	4.6k 2.1×	860 0.5×	1.5k 1.3×	382	11.0k
Moritz U. G. Kraemer United Kingdom	39	3.9k 0.7×	3.5k 1.3×	1.3k 0.6×	1.5k 0.9×	3.6k 3.1×	101	9.2k
Steven Riley United Kingdom	55	6.2k 1.1×	4.5k 1.6×	5.1k 2.4×	798 0.5×	1.9k 1.6×	187	11.9k

Countries citing papers authored by Marco Ajelli

Since Specialization

Citations

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

Fields of papers citing papers by Marco Ajelli

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Marco Ajelli

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Wang, Qianli, Wei Wang, Xiaoyu Zhou, et al.. (2025). Measles Population Immunity in Hunan, China: A Serological Assessment. Open Forum Infectious Diseases. 12(5). ofaf216–ofaf216.

Chen, Nana, et al.. (2025). Understanding human mobility patterns under a public health emergency. Infectious Disease Modelling. 11(1). 241–255.

Zhang, Juanjuan, Chenyan Jiang, Maria Litvinova, et al.. (2024). Evaluating Seasonal Variations in Human Contact Patterns and Their Impact on the Transmission of Respiratory Infectious Diseases. Influenza and Other Respiratory Viruses. 18(5). e13301–e13301. 6 indexed citations

Guzzetta, Giorgio, Valentina Marziano, Martina Del Manso, et al.. (2024). Increasing situational awareness through nowcasting of the reproduction number. Frontiers in Public Health. 12. 1430920–1430920.

Wang, Qianli, Wei Wang, Amy K. Winter, et al.. (2023). Long-term measles antibody profiles following different vaccine schedules in China, a longitudinal study. Nature Communications. 14(1). 15 indexed citations

Zheng, Wen, Xiaowei Deng, Peng Cheng, et al.. (2023). Risk Factors Associated with the Spatiotemporal Spread of the SARS-CoV-2 Omicron BA.2 Variant — Shanghai Municipality, China, 2022. China CDC Weekly. 5(5). 97–102. 3 indexed citations

Pangallo, Marco, Alberto Aleta, Anton Pichler, et al.. (2023). The unequal effects of the health–economy trade-off during the COVID-19 pandemic. Nature Human Behaviour. 8(2). 264–275. 31 indexed citations

Ejima, Keisuke, Kwang Su Kim, Shoya Iwanami, et al.. (2022). Designing isolation guidelines for COVID-19 patients with rapid antigen tests. Nature Communications. 13(1). 4910–4910. 19 indexed citations

Liu, Quan-Hui, Peng Cheng, Maria Litvinova, et al.. (2022). Model-based evaluation of alternative reactive class closure strategies against COVID-19. Nature Communications. 13(1). 322–322. 29 indexed citations

10.

Manica, Mattia, Serena Pancheri, Piero Poletti, et al.. (2021). Risk of Symptomatic Infection During a Second Coronavirus Disease 2019 Wave in Severe Acute Respiratory Syndrome Coronavirus 2–Seropositive Individuals. Clinical Infectious Diseases. 74(5). 893–896. 5 indexed citations

11.

Marziano, Valentina, Giorgio Guzzetta, Alessia Mammone, et al.. (2021). The effect of COVID-19 vaccination in Italy and perspectives for living with the virus. Institutional Research Information System (University of Udine). 41 indexed citations

12.

Marziano, Valentina, Giorgio Guzzetta, Bruna Maria Rondinone, et al.. (2021). Retrospective analysis of the Italian exit strategy from COVID-19 lockdown. Proceedings of the National Academy of Sciences. 118(4). 62 indexed citations

13.

Manica, Mattia, Giorgio Guzzetta, Flavia Riccardo, et al.. (2021). Impact of tiered restrictions on human activities and the epidemiology of the second wave of COVID-19 in Italy. Nature Communications. 12(1). 4570–4570. 46 indexed citations

14.

Ejima, Keisuke, Kwang Su Kim, Shoya Iwanami, et al.. (2021). Revisiting the guidelines for ending isolation for COVID-19 patients. eLife. 10. 16 indexed citations

15.

Yang, Juan, Hui Gong, Xinhua Chen, et al.. (2020). Health‐seeking behaviors of patients with acute respiratory infections during the outbreak of novel coronavirus disease 2019 in Wuhan, China. Influenza and Other Respiratory Viruses. 15(2). 188–194. 13 indexed citations

16.

Sun, Kaiyuan, Wei Wang, Lidong Gao, et al.. (2020). Transmission heterogeneities, kinetics, and controllability of SARS-CoV-2. Science. 371(6526). 243 indexed citations

17.

Chinazzi, Matteo, Jessica T. Davis, Marco Ajelli, et al.. (2020). The effect of travel restrictions on the spread of the 2019 novel coronavirus (COVID-19) outbreak. Science. 368(6489). 395–400. 2411 indexed citations breakdown →

18.

Zhang, Juanjuan, Maria Litvinova, Yuxia Liang, et al.. (2020). Changes in contact patterns shape the dynamics of the COVID-19 outbreak in China. Science. 368(6498). 1481–1486. 732 indexed citations breakdown →

19.

Liu, Quan-Hui, Ana I. Bento, Kexin Yang, et al.. (2020). The COVID-19 outbreak in Sichuan, China: Epidemiology and impact of interventions. PLoS Computational Biology. 16(12). e1008467–e1008467. 20 indexed citations

20.

Ajelli, Marco, Stefano Merler, Laura Fumanelli, Antonino Bella, & Caterina Rizzo. (2014). Estimating measles transmission potential in Italy over the period 2010-2011.. SHILAP Revista de lepidopterología. 50(4). 351–6. 2 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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