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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 69 2030 1853 858 759 141 18127

Fred Heffron publications per year

The chart shows the history of publications by Fred Heffron between 1975 and 2018, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Fred Heffron published across 44 years, from 1975 to 2018, averaging 3.2 papers a year. Output peaked at 11 publications in 2012. 1 of the 141 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1975 to 2018. Vertical axis: number of publications, 0 to 11. Peak 11 publications in 2012. 1975: 2 publications 1976: 1 publication 1977: 3 publications 1978: 4 publications 1979: 5 publications 1980: 1 publication 1981: 2 publications 1982: 0 publications 1983: 2 publications 1984: 1 publication 1985: 0 publications 1986: 4 publications 1987: 1 publication 1988: 0 publications 1989: 3 publications 1990: 3 publications 1991: 2 publications 1992: 3 publications 1993: 1 publication 1994: 5 publications 1995: 7 publications 1996: 7 publications 1997: 5 publications 1998: 7 publications 1999: 4 publications 2000: 6 publications 2001: 2 publications 2002: 2 publications 2003: 0 publications 2004: 1 publication 2005: 2 publications 2006: 5 publications 2007: 3 publications 2008: 4 publications 2009: 9 publications 2010: 3 publications 2011: 7 publications 2012: 11 publications 2013: 8 publications 2014: 1 publication 2015: 3 publications 2016: 0 publications 2017: 0 publications 2018: 1 publication
1975 2018

141 publications in total across all disciplines

View publications per year as a table
Fred Heffron: publications per year, 1975 to 2018
Year Publications
1975 2
1976 1
1977 3
1978 4
1979 5
1980 1
1981 2
1982 0
1983 2
1984 1
1985 0
1986 4
1987 1
1988 0
1989 3
1990 3
1991 2
1992 3
1993 1
1994 5
1995 7
1996 7
1997 5
1998 7
1999 4
2000 6
2001 2
2002 2
2003 0
2004 1
2005 2
2006 5
2007 3
2008 4
2009 9
2010 3
2011 7
2012 11
2013 8
2014 1
2015 3
2016 0
2017 0
2018 1
Total 141
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Fred Heffron 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 Fred Heffron 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, 135–144 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: 141 publications — 21st percentile

21% 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
135–144 288 141
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
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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Fred Heffron 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 Fred Heffron 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, 69 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: 69 D-Index — 64th percentile

64% 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 69
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

Fred Heffron is affiliated with Oregon Health & Science University in the United States. Their research output includes contributions to data projects related to scientific and technical information, reflecting an engagement with data management and dissemination in research contexts.

Their recent publication record includes a paper titled Data for EMSL Project 48684 from January 2021, published in 2021 through the OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) venue.

The research collaborations of Fred Heffron involve several frequent co-authors, including:

  • John Cort
  • Josh Adkins
  • Heather Olson
  • Charles Ansong
  • Ryan Sontag

The main venue where Fred Heffron's work appears is the OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), with the documented publication occurring there.

Best Publications

  • Mutants of Salmonella typhimurium that cannot survive within the macrophage are avirulent

    Patricia I. Fields;Ronald V. Swanson;Constantine G. Haidaris;Fred Heffron

  • A Salmonella locus that controls resistance to microbicidal proteins from phagocytic cells

    Patricia I. Fields;Eduardo A. Groisman;Fred Heffron

  • Ethanolamine utilization in Salmonella typhimurium: nucleotide sequence, protein expression, and mutational analysis of the cchA cchB eutE eutJ eutG eutH gene cluster.

    I. Stojiljkovic;Andreas J Baumler;F. Heffron

  • Salmonella typhimurium phoP virulence gene is a transcriptional regulator.

    Eduardo A. Groisman;Eric Chiao;Craig J. Lipps;Fred Heffron

  • The lpf fimbrial operon mediates adhesion of Salmonella typhimurium to murine Peyer's patches

    Andreas J. Baumler;Renee M. Tsolis;Fred Heffron

  • SdiA of Salmonella enterica Is a LuxR Homolog That Detects Mixed Microbial Communities

    Bindhu Michael;Jenee N. Smith;Simon Swift;Fred Heffron

  • DNA sequence analysis of the transposon Tn3: Three genes and three sites involved in transposition of Tn3

    Unknown

  • Shuttle mutagenesis: a method of transposon mutagenesis for Saccharomyces cerevisiae

    H. S. Seifert;E. Y. Chen;M. So;F. Heffron

  • Salmonella typhimurium loci involved in survival within macrophages.

    Andreas J Baumler;J. G. Kusters;I. Stojiljkovic;F. Heffron

  • Macrophage killing is an essential virulence mechanism of Salmonella typhimurium

    Susanne W. Lindgren;Igor Stojiljkovic;Fred Heffron

  • Resistance to host antimicrobial peptides is necessary for Salmonella virulence.

    Eduardo A. Groisman;Carlos Parra-Lopez;Margarita Salcedo;Craig J. Lipps

  • Salmonella typhimurium encodes an SdiA homolog, a putative quorum sensor of the LuxR family, that regulates genes on the virulence plasmid.

    Brian M. M. Ahmer;Jeroen van Reeuwijk;Cynthia D. Timmers;Peter J. Valentine

  • Deletions affecting the transposition of an antibiotic resistance gene.

    Fred Heffron;Pat Bedinger;James J. Champoux;Stanley Falkow

  • A cytolysin encoded by Salmonella is required for survival within macrophages.

    S J Libby;W Goebel;A Ludwig;N Buchmeier

  • Salmonella SsrB activates a global regulon of horizontally acquired genes

    Micah J. Worley;Katherine H. L. Ching;Fred Heffron

  • Translocation of a plasmid DNA sequence which mediates ampicillin resistance: molecular nature and specificity of insertion.

    Fred Heffron;Craig Rubens;Stanley Falkow

  • SALMONELLA SIRA IS A GLOBAL REGULATOR OF GENES MEDIATING ENTEROPATHOGENESIS

    Brian M. M. Ahmer;Jeroen Van Reeuwijk;Patricia R. Watson;Tim S. Wallis

  • Recombination‐deficient mutants of Salmonella typhimurium are avirulent and sensitive to the oxidative burst of macrophages

    Nancy A. Buchmeier;Craig J. Lipps;Magdalene "Maggie" So;Fred Heffron

  • Multiple Fimbrial Adhesins Are Required for Full Virulence of Salmonella typhimurium in Mice

    Adrianus W. M. van der Velden;Andreas J. Bäumler;Andreas J. Bäumler;Renée M. Tsolis;Renée M. Tsolis;Fred Heffron

  • The pef fimbrial operon of Salmonella typhimurium mediates adhesion to murine small intestine and is necessary for fluid accumulation in the infant mouse

    Andreas J. Bäumler;Renée M. Tsolis;Frances A. Bowe;Johannes G. Kusters

  • In vitro mutagenesis of a circular DNA molecule by using synthetic restriction sites.

    Fred Heffron;Magdalene So;Brian J. McCarthy

  • Accurate Prediction of Secreted Substrates and Identification of a Conserved Putative Secretion Signal for Type III Secretion Systems

    Ram Samudrala;Fred Heffron;Jason E. McDermott

Frequent Co-Authors

Joshua N. Adkins
Joshua N. Adkins Pacific Northwest National Laboratory
Richard D. Smith
Richard D. Smith Pacific Northwest National Laboratory
Andreas J. Bäumler
Andreas J. Bäumler University of California, Davis
Renée M. Tsolis
Renée M. Tsolis University of California, Davis
Magdalene So
Magdalene So University of Arizona
Ernesto S. Nakayasu
Ernesto S. Nakayasu Pacific Northwest National Laboratory
Thomas O. Metz
Thomas O. Metz Pacific Northwest National Laboratory
Igor Stojiljkovic
Igor Stojiljkovic Emory University
Liang Shi
Liang Shi Pacific Northwest National Laboratory
Eduardo A. Groisman
Eduardo A. Groisman Yale University

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