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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 60 3091 2828 1221 1083 375 15538

Richard K. Zimmerman publications per year

The chart shows the history of publications by Richard K. Zimmerman between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Richard K. Zimmerman published across 35 years, from 1991 to 2025, averaging 12.7 papers a year. Output peaked at 39 publications in 2021. 34 of the 446 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 39. Peak 39 publications in 2021. 1991: 2 publications 1992: 1 publication 1993: 0 publications 1994: 2 publications 1995: 2 publications 1996: 5 publications 1997: 7 publications 1998: 4 publications 1999: 8 publications 2000: 8 publications 2001: 11 publications 2002: 10 publications 2003: 15 publications 2004: 9 publications 2005: 18 publications 2006: 11 publications 2007: 12 publications 2008: 6 publications 2009: 9 publications 2010: 16 publications 2011: 6 publications 2012: 13 publications 2013: 13 publications 2014: 18 publications 2015: 16 publications 2016: 21 publications 2017: 26 publications 2018: 16 publications 2019: 20 publications 2020: 21 publications 2021: 39 publications 2022: 26 publications 2023: 21 publications 2024: 20 publications 2025: 14 publications
1991 2025

446 publications in total across all disciplines

View publications per year as a table
Richard K. Zimmerman: publications per year, 1991 to 2025
Year Publications
1991 2
1992 1
1993 0
1994 2
1995 2
1996 5
1997 7
1998 4
1999 8
2000 8
2001 11
2002 10
2003 15
2004 9
2005 18
2006 11
2007 12
2008 6
2009 9
2010 16
2011 6
2012 13
2013 13
2014 18
2015 16
2016 21
2017 26
2018 16
2019 20
2020 21
2021 39
2022 26
2023 21
2024 20
2025 14
Total 446
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Richard K. Zimmerman 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 Richard K. Zimmerman 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, 375–384 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: 375 publications — 88th percentile

88% 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
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 61 375
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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Richard K. Zimmerman 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 Richard K. Zimmerman 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, 60 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: 60 D-Index — 44th percentile

44% 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 60
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94
71 93
72 96
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

Richard K. Zimmerman is affiliated with the University of Pittsburgh in the United States and has an extensive publication record principally in the field of Medicine. Their research encompasses several subfields including Epidemiology, Infectious Diseases, Modeling and Simulation, Health, and Pulmonary and Respiratory Medicine.

The main topics covered in their body of work include:

  • Influenza Virus Research Studies
  • Respiratory viral infections research
  • Pneumonia and Respiratory Infections
  • SARS-CoV-2 and COVID-19 Research
  • COVID-19 epidemiological studies
  • Vaccine Coverage and Hesitancy
  • COVID-19 Clinical Research Studies

Zimmerman's publication venues reflect a focus on infectious diseases and preventive medicine. Frequent venues where their work appears include:

  • Vaccine
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Clinical Infectious Diseases
  • American Journal of Preventive Medicine
  • The Journal of Infectious Diseases

Recent papers authored or co-authored by Zimmerman address vaccine effectiveness and immunization practices. These papers include:

  • "Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years - United States, January-March 2021" (2021), published in MMWR Morbidity and Mortality Weekly Report
  • "Interim Estimates of 2019-20 Seasonal Influenza Vaccine Effectiveness - United States, February 2020" (2020), MMWR Morbidity and Mortality Weekly Report
  • "Effect of Antigenic Drift on Influenza Vaccine Effectiveness in the United States-2019-2020" (2020), Clinical Infectious Diseases
  • "Effects of Influenza Vaccination in the United States During the 2018-2019 Influenza Season" (2020), Clinical Infectious Diseases
  • "Use of 15-Valent Pneumococcal Conjugate Vaccine Among U.S. Children: Updated Recommendations of the Advisory Committee on Immunization Practices - United States, 2022" (2022), MMWR Morbidity and Mortality Weekly Report

Collaboration is notable in Zimmerman's work. Frequent co-authors include:

  • Mary Patricia Nowalk
  • Manjusha Gaglani
  • Emily T. Martin
  • Brendan Flannery
  • Arnold S. Monto

Zimmerman's research contributes broadly to understanding vaccine effectiveness, respiratory infections, and public health vaccination strategies. Their focus spans multiple important areas within infectious diseases and public health epidemiology, particularly concerning influenza and COVID-19.

Best Publications

  • Seasonal Influenza in Adults and Children—Diagnosis, Treatment, Chemoprophylaxis, and Institutional Outbreak Management: Clinical Practice Guidelines of the Infectious Diseases Society of America

    Scott A. Harper;John S. Bradley;Janet A. Englund;Thomas M. File

  • Influenza estacional en adultos y niños—Diagnóstico, tratamiento, quimioprofilaxis y control de brotes institucionales: Guías de práctica clínica de la Sociedad de Enfermedades Infecciosas de Estados Unidos de América

    Scott A. Harper;John S. Bradley;John S. Bradley;Janet A. Englund;Thomas M. File

  • Influenza Vaccine Effectiveness in the 2011–2012 Season: Protection Against Each Circulating Virus and the Effect of Prior Vaccination on Estimates

    Suzanne E. Ohmit;Mark G. Thompson;Joshua G. Petrie;Swathi N. Thaker

  • Vaccine criticism on the World Wide Web.

    Richard K Zimmerman;Robert M Wolfe;Dwight E Fox;Jake R Fox

  • Sensitivity and specificity of patient self-report of influenza and pneumococcal polysaccharide vaccinations among elderly outpatients in diverse patient care strata

    Richard Kent Zimmerman;Mahlon Raymund;Janine E Janosky;Mary Patricia Nowalk

  • Influenza vaccine effectiveness in the United States during the 2015-2016 season.

    Michael L. Jackson;Jessie R. Chung;Lisa A. Jackson;C. Hallie Phillips

  • Influenza Vaccine Effectiveness in the United States During 2012–2013: Variable Protection by Age and Virus Type

    Huong Q. McLean;Mark G. Thompson;Maria E. Sundaram;Burney A. Kieke

  • Generalist and subspecialist physicians' knowledge, attitudes, and practices regarding influenza and pneumococcal vaccinations for elderly and other high-risk patients: a nationwide survey.

    Kristin L. Nichol;Richard Zimmerman

  • Effects of Influenza Vaccination in the United States During the 2017-2018 Influenza Season.

    Melissa A Rolfes;Brendan Flannery;Jessie R Chung;Alissa O'Halloran

  • 2014-2015 Influenza Vaccine Effectiveness in the United States by Vaccine Type.

    Richard K Zimmerman;Mary Patricia Nowalk;Jessie Chung;Michael L Jackson

  • What affects influenza vaccination rates among older patients? An analysis from inner-city, suburban, rural, and veterans affairs practices

    Richard Kent Zimmerman;Tammy A Santibanez;Janine E Janosky;Michael J Fine

  • Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years - United States, January-March 2021.

    Mark W. Tenforde;Samantha M. Olson;Wesley H. Self;H. Keipp Talbot

  • Early Estimates of Seasonal Influenza Vaccine Effectiveness — United States, January 2015

    Brendan Flannery;Jessie Clippard;Richard K. Zimmerman;Mary Patricia Nowalk

  • Immunization Programs for Infants, Children, Adolescents, and Adults: Clinical Practice Guidelines by the Infectious Diseases Society of America

    Larry K. Pickering;Carol J. Baker;Gary L. Freed;Stanley A. Gall

  • Interim Estimates of 2017-18 Seasonal Influenza Vaccine Effectiveness - United States, February 2018.

    Brendan Flannery;Jessie R. Chung;Edward A. Belongia;Huong Q. McLean

  • Spread of Antigenically Drifted Influenza A(H3N2) Viruses and Vaccine Effectiveness in the United States During the 2018-2019 Season.

    Brendan Flannery;Rebecca J Garten Kondor;Jessie R Chung;Manjusha Gaglani

  • Simulating school closure strategies to mitigate an influenza epidemic.

    Bruce Y. Lee;Shawn T. Brown;Philip Cooley;Maggie A. Potter

  • Influenza Vaccine Effectiveness Against 2009 Pandemic Influenza A(H1N1) Virus Differed by Vaccine Type During 2013–2014 in the United States

    Manjusha Gaglani;Jessica Pruszynski;Kempapura Murthy;Lydia Clipper

  • Outpatient Antibiotic Prescribing for Acute Respiratory Infections During Influenza Seasons.

    Fiona P. Havers;Lauri A. Hicks;Jessie R. Chung;Manjusha Gaglani

  • Cost-effectiveness of Adult Vaccination Strategies Using Pneumococcal Conjugate Vaccine Compared With Pneumococcal Polysaccharide Vaccine

    Kenneth J. Smith;Angela R. Wateska;Mary Patricia Nowalk;Mahlon Raymund

  • Influenza Vaccine Effectiveness in the United States During the 2016–2017 Season

    Brendan Flannery;Jessie R Chung;Arnold S Monto;Emily T Martin

Frequent Co-Authors

Mary Patricia Nowalk
Mary Patricia Nowalk University of Pittsburgh
Manjusha Gaglani
Manjusha Gaglani Baylor College of Medicine
Brendan Flannery
Brendan Flannery Centers for Disease Control and Prevention
Arnold S. Monto
Arnold S. Monto University of Michigan–Ann Arbor
Huong Q. McLean
Huong Q. McLean Marshfield Clinic
Edward A. Belongia
Edward A. Belongia Marshfield Clinic
Lisa A. Jackson
Lisa A. Jackson Kaiser Permanente
Alicia M. Fry
Alicia M. Fry Emory University
Emily T. Martin
Emily T. Martin University of Michigan–Ann Arbor
Manish M. Patel
Manish M. Patel Centers for Disease Control and Prevention

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Related Online Degrees & Career Pathways

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For those inclined toward management, pursuing qualifications linked to becoming a health information manager salary positions students to oversee the integration of microbiological data within health information systems, ensuring accuracy and compliance in healthcare facilities.

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