Hannu Alakärppä

619 total citations
9 papers, 475 citations indexed

About

Hannu Alakärppä is a scholar working on Microbiology, Epidemiology and Surgery. According to data from OpenAlex, Hannu Alakärppä has authored 9 papers receiving a total of 475 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Microbiology, 5 papers in Epidemiology and 3 papers in Surgery. Recurrent topics in Hannu Alakärppä's work include Reproductive tract infections research (8 papers), Urinary Tract Infections Management (4 papers) and Respiratory and Cough-Related Research (2 papers). Hannu Alakärppä is often cited by papers focused on Reproductive tract infections research (8 papers), Urinary Tract Infections Management (4 papers) and Respiratory and Cough-Related Research (2 papers). Hannu Alakärppä collaborates with scholars based in Finland and United States. Hannu Alakärppä's co-authors include Pekka Saikku, Aino Laurila, Heljä‐Marja Surcel, Kari Lounatmaa, Jukka Juvonen, Matti I. Kairaluoma, Kirsi Laitinen, M. Leinonen, Pekka Saikku and Tatu Juvonen and has published in prestigious journals such as Journal of the American College of Cardiology, Annals of the New York Academy of Sciences and Antimicrobial Agents and Chemotherapy.

In The Last Decade

Hannu Alakärppä

9 papers receiving 439 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Hannu Alakärppä Finland	8	294	219	109	103	88	9	475
L. Fagetti Italy	8	237 0.8×	265 1.2×	102 0.9×	93 0.9×	126 1.4×	10	490
F Denti Italy	6	179 0.6×	175 0.8×	70 0.6×	100 1.0×	79 0.9×	8	355
A Cappuccio United States	4	406 1.4×	278 1.3×	133 1.2×	102 1.0×	21 0.2×	7	544
Suvi-Sirkku E. Kaukoranta-Tolvanen Finland	5	313 1.1×	186 0.8×	147 1.3×	61 0.6×	14 0.2×	6	410
Jin-Han Kang South Korea	13	138 0.5×	267 1.2×	51 0.5×	92 0.9×	87 1.0×	18	500
Mónica Fonseca-Aten United States	11	106 0.4×	281 1.3×	46 0.4×	43 0.4×	111 1.3×	13	375
Wujun Jiang China	13	99 0.3×	328 1.5×	52 0.5×	44 0.4×	168 1.9×	51	542
Jean-Michel Hannoun Levi United Kingdom	5	106 0.4×	74 0.3×	59 0.5×	277 2.7×	56 0.6×	6	428
H Kent United States	4	260 0.9×	167 0.8×	17 0.2×	66 0.6×	100 1.1×	8	424
Mijke A. Breukels Netherlands	10	115 0.4×	185 0.8×	121 1.1×	47 0.5×	29 0.3×	16	362

Countries citing papers authored by Hannu Alakärppä

Since Specialization

Citations

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

Fields of papers citing papers by Hannu Alakärppä

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hannu Alakärppä

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

All Works

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9 of 9 papers shown

Alakärppä, Hannu, et al.. (2004). Telithromycin Treatment of Chronic Chlamydia pneumoniae Infection in C57BL/6J mice. Antimicrobial Agents and Chemotherapy. 48(10). 3655–3661. 13 indexed citations

Alakärppä, Hannu, Heljä‐Marja Surcel, Kirsi Laitinen, et al.. (1999). Detection of Chlamydia pneumoniae by colorimetric in situ hybridization. Apmis. 107(1-6). 451–454. 13 indexed citations

Jero, Jussi, Hannu Alakärppä, Anni Virolainen, Pekka Saikku, & P. Karma. (1999). POLYMERASE CHAIN REACTION ASSAY FOR DETECTING CHLAMYDIA PNEUMONIAE IN MIDDLE EAR FLUID OF CHILDREN WITH OTITIS MEDIA WITH EFFUSION. The Pediatric Infectious Disease Journal. 18(10). 939–940. 9 indexed citations

Surcel, Heljä‐Marja, Hannu Alakärppä, Kirsi Laitinen, et al.. (1999). Chlamydia pneumoniae Infection in Human Monocytes. Infection and Immunity. 67(12). 6716–6716. 2 indexed citations

Surcel, Heljä‐Marja, Hannu Alakärppä, Kirsi Laitinen, et al.. (1999). Chlamydia pneumoniaeInfection in Human Monocytes. Infection and Immunity. 67(3). 1445–1449. 105 indexed citations

Juvonen, Jukka, Tatu Juvonen, Aino Laurila, et al.. (1997). Demonstration of Chlamydia pneumoniae in the walls of abdominal aortic aneurysms. Journal of Vascular Surgery. 25(3). 499–505. 155 indexed citations

Juvonen, Jukka, Aino Laurila, Tatu Juvonen, et al.. (1997). Detection of Chlamydia pneumoniaein Human Nonrheumatic Stenotic Aortic Valves. Journal of the American College of Cardiology. 29(5). 1054–1059. 73 indexed citations

Hertzen, Leena von, Hannu Alakärppä, Kari Liippo, et al.. (1997). Chlamydia pneumoniae infection in patients with chronic obstructive pulmonary disease. Epidemiology and Infection. 118(2). 155–164. 92 indexed citations

Juvonen, Jukka, Tatu Juvonen, Aino Laurila, et al.. (1996). Immunohistochemical Detection of Chlamydia pneumoniae in Abdominal Aortic Aneurysms. Annals of the New York Academy of Sciences. 800(1). 236–238. 13 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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