🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

Johanna B. Holm

University of Maryland, Baltimore

ORCID: 0000-0002-7646-4085

Also affiliated with Beijing Advanced Sciences and Innovation Center

Immunology and MicrobiologyBiochemistry, Genetics and Molecular BiologyMedicine

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 2%percentile

4.3Author DataRank

Indexed papers

1in pilot corpus

datarank_citation_only_1hop_v6· scope data_onlyMethodology

Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 1 indexed paper attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

A comprehensive non-redundant gene catalog reveals extensive within-community intraspecies diversity in the human vagina

Nature Communications(2020)10.1038/s41467-020-14677-3

Top 5%

4.3DataRank

Top 5%196 citations

Michael France, Jonathan Crabtree, Johanna B. Holm, Michael S. Humphrys, Rebecca M. Brotman +2 more

Papers

Driven by 13 papers — median percentile 95. Top paper: “A comprehensive non-redundant gene catalog reveals extensive within-community intraspecies diversity in the human vagina”.

A comprehensive non-redundant gene catalog reveals extensive within-community intraspecies diversity in the human vagina

Nature Communications(2020)10.1038/s41467-020-14677-3

Top 5%

4.3DataRank

Top 5%196 citations

Michael France, Jonathan Crabtree, Johanna B. Holm, Michael S. Humphrys, Rebecca M. Brotman +2 more

VALENCIA: a nearest centroid classification method for vaginal microbial communities based on composition

Microbiome(2020)10.1186/s40168-020-00934-6

N/A

0DataRank · unranked

449 citations

Bing Ma, Pawel Gajer, Sarah E. Brown, Michael S. Humphrys, Johanna B. Holm +4 more

Comparative Metagenome-Assembled Genome Analysis of “Candidatus Lachnocurva vaginae”, Formerly Known as Bacterial Vaginosis-Associated Bacterium−1 (BVAB1)

Frontiers in Cellular and Infection Microbiology(2020)10.3389/fcimb.2020.00117

N/A

0DataRank · unranked

62 citations

Michael France, Bing Ma, Elias McComb, Courtney K. Robinson, Aditya Mehta +4 more

VALENCIA: A nearest centroid classification method for vaginal microbial communities based on composition

Research Square(2020)10.21203/rs.2.24139/v1

N/A

0DataRank · unranked

9 citations

Bing Ma, Pawel Gajer, Sarah E. Brown, Mike Humphrys, Johanna B. Holm +3 more

VALENCIA: A Nearest Centroid Classification Method for Vaginal Microbial Communities Based on Composition

Research Square(2020)10.21203/rs.3.rs-79309/v1

N/A

0DataRank · unranked

0 citations

Bing Ma, Pawel Gajer, Sarah E. Brown, Michael S. Humphrys, Johanna B. Holm +4 more

Integrating compositional and functional content to describe vaginal microbiomes in health and disease

Microbiome(2023)10.1186/s40168-023-01692-x

N/A

0DataRank · unranked

71 citations

Michael France, Pawel Gajer, Bing Ma, Rebecca M. Brotman, Michelle Shardell +3 more

Investigating the impact of condomless vaginal intercourse and lubricant use on the vaginal metabolome: a pre-post observational study

Sexually Transmitted Infections(2023)10.1136/sextrans-2022-055667

N/A

0DataRank · unranked

6 citations

Savannah G. Grace, Johanna B. Holm, Tadeo Aviles Zuniga, Herlin Kadriu, Xin He +5 more

High-resolution functional description of vaginal microbiomes in health and disease

bioRxiv (Cold Spring Harbor Laboratory)(2023)10.1101/2023.03.24.533147

N/A

0DataRank · unranked

1 citations

Michael France, Pawel Gajer, Bing Ma, Rebecca M. Brotman, Michelle Shardell +3 more

Comparison of shipping versus immediate freezer storage of vaginal samples for vaginal microbiota assessment

Sexually Transmitted Infections(2024)10.1136/sextrans-2023-056100

N/A

0DataRank · unranked

1 citations

Pawel Gajer, Johanna B. Holm, Sarah E. Brown, Larry J. Forney, Jacques Ravel +3 more

SpeciateIT and vSpeciateDB: Novel, fast and accurate per sequence 16S rRNA gene taxonomic classification of vaginal microbiota

bioRxiv (Cold Spring Harbor Laboratory)(2024)10.1101/2024.04.18.590089

N/A

0DataRank · unranked

4 citations

Pawel Gajer, Jacques Ravel, Johanna B. Holm

Temporal dynamics of the vaginal microbiome and host immune markers before, during, and after metronidazole treatment for bacterial vaginosis

mSystems(2025)10.1128/msystems.00380-25

N/A

0DataRank · unranked

5 citations

Jacques Ravel, Eric Armstrong, Sanja Huibner, Lindsay Rutt, Rupert Kaul +2 more

Common cervicovaginal sequencing methods result in discordant molecular diagnoses of bacterial vaginosis and reveal strain level effects of Gardnerella vaginalis

npj Women s Health(2025)10.1038/s44294-025-00089-5

N/A

0DataRank · unranked

2 citations

E. R. Swanson, Emily M. Cherenack, Chris Basting, Nicholas Fonseca Nogueira, Michael France +12 more

Maternal anemia during pregnancy and its association with the gut microbiota profile in pregnant and postpartum women, and their infants: a cohort study

American Journal of Clinical Nutrition(2025)10.1016/j.ajcnut.2025.09.035

N/A

0DataRank · unranked

0 citations

Laura E. Caulfield, Sameera A. Talegawkar, Jyoti S. Mathad, Shilpa Naik, Mallika Alexander +16 more