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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 72 1790 1627 760 665 246 14727

Venkatachalam Udhayakumar publications per year

The chart shows the history of publications by Venkatachalam Udhayakumar between 1987 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Venkatachalam Udhayakumar published across 39 years, from 1987 to 2025, averaging 6.5 papers a year. Output peaked at 18 publications in 2015. 5 of the 252 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1987 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2015. 1987: 1 publication 1988: 2 publications 1989: 1 publication 1990: 1 publication 1991: 3 publications 1992: 0 publications 1993: 2 publications 1994: 4 publications 1995: 3 publications 1996: 7 publications 1997: 4 publications 1998: 2 publications 1999: 3 publications 2000: 6 publications 2001: 2 publications 2002: 6 publications 2003: 6 publications 2004: 3 publications 2005: 7 publications 2006: 4 publications 2007: 8 publications 2008: 11 publications 2009: 4 publications 2010: 11 publications 2011: 7 publications 2012: 10 publications 2013: 12 publications 2014: 9 publications 2015: 18 publications 2016: 16 publications 2017: 13 publications 2018: 14 publications 2019: 10 publications 2020: 14 publications 2021: 10 publications 2022: 12 publications 2023: 1 publication 2024: 3 publications 2025: 2 publications
1987 2025

252 publications in total across all disciplines

View publications per year as a table
Venkatachalam Udhayakumar: publications per year, 1987 to 2025
Year Publications
1987 1
1988 2
1989 1
1990 1
1991 3
1992 0
1993 2
1994 4
1995 3
1996 7
1997 4
1998 2
1999 3
2000 6
2001 2
2002 6
2003 6
2004 3
2005 7
2006 4
2007 8
2008 11
2009 4
2010 11
2011 7
2012 10
2013 12
2014 9
2015 18
2016 16
2017 13
2018 14
2019 10
2020 14
2021 10
2022 12
2023 1
2024 3
2025 2
Total 252
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Venkatachalam Udhayakumar publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Venkatachalam Udhayakumar sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 64 bars. Horizontal axis: publications, 55–64 to 679+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 135–144 publications. The last bar groups every scientist with 679 publications or more. The highlighted bar, 245–254 publications, is where this scientist sits. 55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55–64 publications 679+

This scientist: 246 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

View publications distribution as a table
Number of Microbiology scientists by publication count, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
Publications Scientists This scientist
55–64 8
65–74 29
75–84 55
85–94 112
95–104 137
105–114 190
115–124 235
125–134 234
135–144 288
145–154 265
155–164 264
165–174 253
175–184 276
185–194 190
195–204 234
205–214 208
215–224 198
225–234 155
235–244 161
245–254 160 246
255–264 146
265–274 139
275–284 148
285–294 115
295–304 96
305–314 88
315–324 106
325–334 65
335–344 76
345–354 64
355–364 62
365–374 65
375–384 61
385–394 34
395–404 44
405–414 36
415–424 35
425–434 29
435–444 33
445–454 34
455–464 25
465–474 26
475–484 20
485–494 19
495–504 16
505–514 17
515–524 23
525–534 14
535–544 14
545–554 18
555–564 12
565–574 7
575–584 9
585–594 9
595–604 9
605–614 7
615–624 9
625–634 7
635–644 4
645–654 5
655–664 6
665–674 7
675–678 3
679+ 99
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Venkatachalam Udhayakumar D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Venkatachalam Udhayakumar sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 88 bars. Horizontal axis: D-Index, 40 to 127+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 58 D-Index. The last bar groups every scientist with 127 D-Index or more. The highlighted bar, 72 D-Index, is where this scientist sits. 40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

View D-Index distribution as a table
Number of Microbiology scientists by D-index, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
D-Index Scientists This scientist
40 30
41 86
42 90
43 117
44 122
45 123
46 108
47 110
48 106
49 109
50 129
51 111
52 116
53 127
54 134
55 134
56 112
57 136
58 162
59 151
60 139
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94
71 93
72 96 72
73 92
74 80
75 66
76 87
77 60
78 73
79 59
80 57
81 55
82 47
83 77
84 50
85 45
86 42
87 41
88 32
89 38
90 35
91 34
92 27
93 26
94 33
95 22
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18
108 14
109 10
110 9
111 7
112 11
113 6
114 15
115 10
116 12
117 7
118 10
119 10
120 11
121 2
122 7
123 12
124 5
125 9
126 6
127+ 95
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Overview

Venkatachalam Udhayakumar is affiliated with the Centers for Disease Control and Prevention in the United States. Their primary research contributions lie within the field of Medicine, with a strong focus on Public Health, Environmental and Occupational Health, Infectious Diseases, Parasitology, Computational Theory and Mathematics, and Molecular Biology.

The scientist's main research topics include Malaria Research and Control, Mosquito-borne diseases and control, Computational Drug Discovery Methods, Drug-Induced Hepatotoxicity and Protection, Parasites and Host Interactions, Travel-related health issues, and SARS-CoV-2 and COVID-19 Research.

Key recent scientific papers include:

  • Association of Plasmodium falciparum kelch13 R561H genotypes with delayed parasite clearance in Rwanda: an open-label, single-arm, multicentre, therapeutic efficacy study, 2021, The Lancet Infectious Diseases
  • Local emergence in Amazonia of Plasmodium falciparum k13 C580Y mutants associated with in vitro artemisinin resistance, 2020, eLife
  • Malaria and Parasitic Neglected Tropical Diseases: Potential Syndemics with COVID-19?, 2020, American Journal of Tropical Medicine and Hygiene
  • Plasmodium falciparum pfhrp2 and pfhrp3 Gene Deletions from Persons with Symptomatic Malaria Infection in Ethiopia, Kenya, Madagascar, and Rwanda, 2022, Emerging infectious diseases
  • Spatio-temporal dynamics of Plasmodium falciparum transmission within a spatial unit on the Colombian Pacific Coast, 2020, Scientific Reports

Frequent co-authors collaborating with Udhayakumar include:

  • Eric Rogier
  • Naomi W. Lucchi
  • Camelia Herman
  • Douglas Nace
  • Michelle Chang

Udhayakumar has published extensively in several venues, notably:

  • Malaria Journal
  • Scientific Reports
  • UNC Libraries
  • American Journal of Tropical Medicine and Hygiene
  • Emerging infectious diseases

Best Publications

  • Protective effects of the sickle cell gene against malaria morbidity and mortality

    Michael Aidoo;Dianne J Terlouw;Margarette S Kolczak;Peter D McElroy

  • The burden of co-infection with human immunodeficiency virus type 1 and malaria in pregnant women in sub-saharan Africa.

    Feiko O. Ter Kuile;Monica E. Parise;Francine H. Verhoeff;Venkatachalam Udhayakumar

  • Association of Plasmodium falciparum kelch13 R561H genotypes with delayed parasite clearance in Rwanda: an open-label, single-arm, multicentre, therapeutic efficacy study.

    Aline Uwimana;Noella Umulisa;Meera Venkatesan;Samaly S. Svigel

  • A Low Interleukin-10 Tumor Necrosis Factor-α Ratio Is Associated with Malaria Anemia in Children Residing in a Holoendemic Malaria Region in Western Kenya

    Caroline Othoro;Altaf A. Lal;Bernard Nahlen;Davy Koech

  • Cerebrospinal fluid and serum biomarkers of cerebral malaria mortality in Ghanaian children

    Henry B Armah;Henry B Armah;Nana O Wilson;Bismark Y Sarfo;Michael D Powell

  • A longitudinal investigation of IgG and IgM antibody responses to the merozoite surface protein-1 19-kiloDalton domain of Plasmodium falciparum in pregnant women and infants: associations with febrile illness, parasitemia, and anemia.

    Oralee H. Branch;Venkatachalam Udhayakumar;Allen W. Hightower;Aggrey J. Oloo

  • A new NOS2 promoter polymorphism associated with increased nitric oxide production and protection from severe malaria in Tanzanian and Kenyan children

    Maurine R Hobbs;Venkatachalam Udhayakumar;Marc C Levesque;Jennifer Booth

  • Real-time fluorescence loop mediated isothermal amplification for the diagnosis of malaria.

    Naomi W. Lucchi;Naomi W. Lucchi;Allison Demas;Jothikumar Narayanan;Deborah Sumari

  • Major Threat to Malaria Control Programs by Plasmodium falciparum Lacking Histidine-Rich Protein 2, Eritrea.

    Araia Berhane;Karen Anderson;Selam Mihreteab;Karryn Gresty

  • Plasma IP-10, apoptotic and angiogenic factors associated with fatal cerebral malaria in India

    Vidhan Jain;Henry B Armah;Jon E Tongren;Renée M Ned

  • The temporal dynamics and infectiousness of subpatent Plasmodium falciparum infections in relation to parasite density

    Hannah C. Slater;Amanda Ross;Amanda Ross;Ingrid Felger;Ingrid Felger;Natalie E. Hofmann;Natalie E. Hofmann

  • Prevalence of pfhrp2 and/or pfhrp3 Gene Deletion in Plasmodium falciparum Population in Eight Highly Endemic States in India.

    Praveen Kumar Bharti;Himanshu Singh Chandel;Amreen Ahmad;Sri Krishna

  • Tumor necrosis factor-alpha promoter variant 2 (TNF2) is associated with pre-term delivery, infant mortality, and malaria morbidity in western Kenya: Asembo Bay Cohort Project IX

    Michael Aidoo;Peter D. McElroy;Margarette S. Kolczak;Dianne J. Terlouw

  • Antifolate Resistance in Plasmodium falciparum: Multiple Origins and Identification of Novel dhfr Alleles

    Andrea M. McCollum;Amanda C. Poe;Mary Hamel;Mary Hamel;Curtis Huber

  • Natural immune response to the C-terminal 19-kilodalton domain of Plasmodium falciparum merozoite surface protein 1.

    Ya Ping Shi;Umar Sayed;Shoukat H. Qari;Jacquelin M. Roberts

  • Immunity to Placental Malaria. I. Elevated Production of Interferon-γ by Placental Blood Mononuclear Cells Is Associated with Protection in an Area with High Transmission of Malaria

    Julie M. Moore;Bernard L. Nahlen;Ambrose Misore;Altaf A. Lal

  • Molecular diagnosis of malaria by photo-induced electron transfer fluorogenic primers: PET-PCR.

    Naomi W. Lucchi;Jothikumar Narayanan;Mara A. Karell;Maniphet Xayavong

  • Independent Emergence of the Plasmodium falciparum Kelch Propeller Domain Mutant Allele C580Y in Guyana

    Stella M. Chenet;Sheila Akinyi Okoth;Curtis S. Huber;Javin Chandrabose

  • Origin and evolution of sulfadoxine resistant Plasmodium falciparum.

    Sumiti Vinayak;Tauqeer Alam;Tonya Mixson-Hayden;Andrea M. McCollum

  • Local emergence in Amazonia of Plasmodium falciparum k13 C580Y mutants associated with in vitro artemisinin resistance.

    Luana C Mathieu;Luana C Mathieu;Horace Cox;Angela M Early;Angela M Early;Sachel Mok

  • Anti-folate drug resistance in Africa: meta-analysis of reported dihydrofolate reductase (dhfr) and dihydropteroate synthase (dhps) mutant genotype frequencies in African Plasmodium falciparum parasite populations

    Sankar Sridaran;Shannon K McClintock;Luke M Syphard;Karen M Herman

  • Identification of T and B cell epitopes recognized by humans in the C-terminal 42-kDa domain of the Plasmodium falciparum merozoite surface protein (MSP)-1.

    Venkatachalam Udhayakumar;D. Anyona;S. Kariuki;Ya Ping Shi

Frequent Co-Authors

Altaf A. Lal
Altaf A. Lal Sun Pharma (India)
John W. Barnwell
John W. Barnwell Centers for Disease Control and Prevention
Bernard L. Nahlen
Bernard L. Nahlen University of Notre Dame
Ananias A. Escalante
Ananias A. Escalante Temple University
Simon Kariuki
Simon Kariuki Kenya Medical Research Institute
Feiko O. ter Kuile
Feiko O. ter Kuile Liverpool School of Tropical Medicine
Laurence Slutsker
Laurence Slutsker Centers for Disease Control and Prevention
Aditya P. Dash
Aditya P. Dash Central University of Tamil Nadu
Lihua Xiao
Lihua Xiao South China Agricultural University
Ivo Mueller
Ivo Mueller Walter and Eliza Hall Institute of Medical Research

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