Ryan Gierke

9.3k citations

34 papers · 5.8k indexed · 10 hit papers · h-index 20

Impact in

Modeling and Simulation top 0.5%
- COVID-19 epidemiological studies
Infectious Diseases top 0.5%
- COVID-19 Clinical Research Studies
- SARS-CoV-2 and COVID-19 Research

Papers in

Microbiology 5
- Bacterial Infections and Vaccines 5
Epidemiology 27
- Pneumonia and Respiratory Infections 26
- Respiratory viral infections research 20
- Pneumocystis jirovecii pneumonia detection and treatment 8

Co-authors: Tamara Pilishvili Stephanie R. Bialek Michelle M. Hughes Tami H. Skoff Matthew D. Ritchey Nancy A. Chow Aron J. Hall Lucy A. McNamara
Journals: MMWR Morbidity and Mortality Weekly Report (11 papers)Open Forum Infectious Diseases (7 papers)Clinical Infectious Diseases (2 papers)The Journal of Infectious Diseases (2 papers)The Pediatric Infectious Disease Journal (2 papers)
Partner nations: United States Gambia Zimbabwe

In The Last Decade

Ryan Gierke

33 papers receiving 5.6k citations

Hit Papers

10 papers align trajectories log scale

Expanded Recommendations for Use of Pneumococcal Conjugate Vaccines Among Adults Aged ≥50 Years: Recommendations of the Advisory Committee on Immunization Practices — United States, 2024 2025 · 26 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2025 MMWR Morbidity and Mortality Weekly Report
2024 MMWR Morbidity and Mortality Weekly Report
2023 PubMed
2022 MMWR Morbidity and Mortality Weekly Report
2020 MMWR Morbidity and Mortality Weekly Report
2020 MMWR Morbidity and Mortality Weekly Report
2020 MMWR Morbidity and Mortality Weekly Report
2020 MMWR Morbidity and Mortality Weekly Report
2019 MMWR Morbidity and Mortality Weekly Report
2014 PubMed

Peers

Countries citing papers authored by Ryan Gierke

Since Specialization

Citations

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

Fields of papers citing papers by Ryan Gierke

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Ryan Gierke, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ryan Gierke Line = papers co-authored together Ryan Gierke links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Expanded Recommendations for Use of Pneumococcal Conjugate Vaccines Among Adults Aged ≥50 Years: Recommendations of the Advisory Committee on Immunization Practices — United States, 2024 MMWR Morbidity and Mortality Weekly Report ·Miwako Kobayashi, Andrew J. Leidner, Ryan Gierke, Priyanka Nayak, Emma K. Accorsi, Pedro L. Moro, Mini Kamboj, George A. Kuchel, Robert Schechter, Jamie Loehr, Adam L. Cohen Hit paper breakdown →	2025	26
2	Effectiveness of 13-valent pneumococcal conjugate vaccine for prevention of invasive pneumococcal disease among children in the United States between 2010 and 2019: An indirect cohort study Vaccine ·Kristin L. Andrejko, Ryan Gierke, Jemma V. Rowlands, Jennifer B. Rosen, Ann Thomas, Michela Zago, María Rosales, 桂子村杉, William Schaffner, Corinne Holtzman, Meghan Barnes, Monica M. Farley, Lee H. Harrison, Lesley McGee, Sopio Chochua, Jennifer R. Verani, Adam L. Cohen, Tamara Pilishvili, Miwako Kobayashi	2024	15
3	Progress Toward Poliomyelitis Eradication — Pakistan, January 2023–June 2024 MMWR Morbidity and Mortality Weekly Report ·(unknown), (unknown), Ryan Gierke, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	2024	19
4	Use of 21-Valent Pneumococcal Conjugate Vaccine Among U.S. Adults: Recommendations of the Advisory Committee on Immunization Practices — United States, 2024 MMWR Morbidity and Mortality Weekly Report ·Miwako Kobayashi, Andrew J. Leidner, Ryan Gierke, Jennifer L. Farrar, Rebecca L. Morgan, Doug Campos‐Outcalt, Robert Schechter, Katherine A. Poehling, Sarah S. Long, Jamie Loehr, Adam L. Cohen Hit paper breakdown →	2024	37
5	Pneumococcal Vaccine for Adults Aged ≥19 Years: Recommendations of the Advisory Committee on Immunization Practices, United States, 2023 PubMed ·Miwako Kobayashi, Tamara Pilishvili, Wathne B., Andrew J. Leidner, Ryan Gierke, Namrata Prasad, Pedro L. Moro, Doug Campos‐Outcalt, Rebecca L. Morgan, Sarah S. Long, Katherine A. Poehling, Adam L. Cohen Hit paper breakdown →	2023	70
6	1718. Effectiveness of 13-valent pneumococcal conjugate vaccine for prevention of invasive pneumococcal disease among children in the United States between 2010 and 2019: an indirect cohort study Open Forum Infectious Diseases ·Kristin L. Andrejko, Ryan Gierke, Jemma V. Rowlands, Jennifer B. Rosen, Ann Thomas, Michela Zago, María Rosales, Susan Petit, William Schaffner, Corinne Holtzman, Monica M. Farley, Meghan Barnes, Lee H. Harrison, Lesley McGee, Sopio Chochua, Jennifer R. Verani, Adam L. Cohen, Tamara Pilishvili, Hodges, Bess P.; Fenton, Ida A.	2023	1
7	Use of 15-Valent Pneumococcal Conjugate Vaccine and 20-Valent Pneumococcal Conjugate Vaccine Among U.S. Adults: Updated Recommendations of the Advisory Committee on Immunization Practices — United States, 2022 MMWR Morbidity and Mortality Weekly Report ·Miwako Kobayashi, Jennifer L. Farrar, Ryan Gierke, Amadea Britton, Lana Childs, Andrew J. Leidner, Doug Campos‐Outcalt, Rebecca L. Morgan, Sarah S. Long, H. Keipp Talbot, Katherine A. Poehling, Tamara Pilishvili Hit paper breakdown →	2022	223
8	1299. Epidemiology of Invasive Pneumococcal Disease (IPD) in the United States 2011-2019 Open Forum Infectious Diseases ·Ryan Gierke, Monica M. Farley, William Schaffner, Ann Thomas, Art Reingold, Lee H. Harrison, Corinne Holtzman, Kari Burzlaff, Susan Petit, Meghan Barnes, Salina Torres, Bernard Beall, Tamara Pilishvili	2021	1
9	1470. Epidemiology of Invasive Pneumococcal Disease (IPD) Following 18 years of Pneumococcal Conjugate Vaccine (PCV) Use in the United States Open Forum Infectious Diseases ·Tamara Pilishvili, Ryan Gierke, Monica M. Farley, William Schaffner, Ann Thomas, Art Reingold, Lee H. Harrison, Corinne Holtzman, Kari Burzlaff, Susan Petit, Rachel Herlihy, Salina Torres, Bernard Beall	2020	14
10	Geographic Differences in COVID-19 Cases, Deaths, and Incidence — United States, February 12–April 7, 2020 MMWR Morbidity and Mortality Weekly Report ·(unknown), (unknown), Stephanie R. Bialek, Virginia B. Bowen, Nancy A. Chow, Aaron T. Curns, Ryan Gierke, Aron J. Hall, Michelle M. Hughes, Tamara Pilishvili, Matthew D. Ritchey, Katherine Roguski, Benjamin J. Silk, Tami H. Skoff, Preethi Sundararaman, Emily N. Ussery, Noureddine Baba, Hilary K. Whitham, John T. Wen Hit paper breakdown →	2020	343
11	Preliminary Estimates of the Prevalence of Selected Underlying Health Conditions Among Patients with Coronavirus Disease 2019 — United States, February 12–March 28, 2020 MMWR Morbidity and Mortality Weekly Report ·(unknown), (unknown), Nancy A. Chow, Katherine E. Fleming-Dutra, Ryan Gierke, Aron J. Hall, Michelle M. Hughes, Tamara Pilishvili, Matthew D. Ritchey, Katherine Roguski, Tami H. Skoff, Emily N. Ussery Hit paper breakdown →	2020	992
12	Upsurge of Conjugate Vaccine Serotype 4 Invasive Pneumococcal Disease Clusters Among Adults Experiencing Homelessness in California, Colorado, and New Mexico The Journal of Infectious Diseases ·Bernard Beall, Hollis Walker, Theresa Tran, Zhongya Li, Jordan McNeill, Lesley McGee, Yuan Li, Benjamin J. Metcalf, Ryan Gierke, Emily Mosites, Sopio Chochua, Tamara Pilishvili	2020	26
13	Genome-wide association analyses of invasive pneumococcal isolates identify a missense bacterial mutation associated with meningitis Nature Communications ·Yuan Li, Benjamin J. Metcalf, Sopio Chochua, Zhongya Li, Hollis Walker, Theresa Tran, Paulina A. Hawkins, Ryan Gierke, Tamara Pilishvili, Lesley McGee, Bernard Beall	2019	22
14	Use of 13-Valent Pneumococcal Conjugate Vaccine and 23-Valent Pneumococcal Polysaccharide Vaccine Among Adults Aged ≥65 Years: Updated Recommendations of the Advisory Committee on Immunization Practices MMWR Morbidity and Mortality Weekly Report ·Almea Matanock, Grace Lee, Ryan Gierke, Miwako Kobayashi, Andrew J. Leidner, Tamara Pilishvili Hit paper breakdown →	2019	244
15	Incremental Cost-Effectiveness of 13-valent Pneumococcal Conjugate Vaccine for Adults Age 50 Years and Older in the United States Journal of General Internal Medicine ·Charles Stoecker, Lindsay Kim, Ryan Gierke, Tamara Pilishvili	2016	72
16	Pneumococcal Serotype 5 Colonization Prevalence Among Newly Arrived Unaccompanied Children 1 Year After an Outbreak—Texas, 2015 The Pediatric Infectious Disease Journal ·Miwako Kobayashi, Lara Misegades, Katherine E. Fleming-Dutra, 张铁中, Ryan Gierke, Srinivas Nanduri, Jessica M. Healy, Dương Nguyễn, Maria da Glória Carvalho, Fabiana Cristina Pimenta, Stephen H. Waterman, Matthew R. Moore, Curi Kim, Cynthia G. Whitney	2016	2
17	Direct and Indirect Impact of 13-Valent Pneumococcal Conjugate Vaccine (PCV13) Use on Invasive Pneumococcal Disease (IPD) Among Children and Adults Open Forum Infectious Diseases ·Tamara Pilishvili, Ryan Gierke, Monica M. Farley, William Schaffner, Ann Thomas, Arthur Reingold, Lee H. Harrison, Ruth Lynfield, Shelley M. Zansky, Susan Petit, Lisa A. Miller, Joseph Bareta, Bernard Beall, Matthew R. Moore, Cynthia G. Whitney	2016	1
18	Prevention of Antibiotic-Nonsusceptible Invasive Pneumococcal Disease With the 13-Valent Pneumococcal Conjugate Vaccine Clinical Infectious Diseases ·Sara Tomczyk, Ruth Lynfield, William Schaffner, Arthur Reingold, Lisa A. Miller, Susan Petit, Corinne Holtzman, Shelley M. Zansky, Ann Thomas, Jan Baumbach, Lee H. Harrison, Monica M. Farley, Bernard Beall, Lesley McGee, Ryan Gierke, Tracy Pondo, Lindsay Kim	2016	112
19	Use of 13-Valent Pneumococcal Conjugate Vaccine and 23-Valent Pneumococcal Polysaccharide Vaccine Among Adults Aged ≥65 Years: Updated Recommendations of the Advisory Committee on Immunization Practices. PubMed ·Sara Tomczyk, Nancy M. Bennett, Charles Stoecker, Ryan Gierke, Matthew R. Moore, Cynthia G. Whitney, Stephen C. Hadler, Tamara Pilishvili, (unknown) Hit paper breakdown →	2014	549
20	Use of 13-Valent Pneumococcal Conjugate Vaccine and 23-Valent Pneumococcal Polysaccharide Vaccine Among Children Aged 6–18 Years with Immunocompromising Conditions: Recommendations of the Advisory Committee on Immunization Practices (ACIP) MMWR Morbidity and Mortality Weekly Report ·Nancy M. Bennett, Tamara Pilishvili, Cynthia G. Whitney, Martine. Corriveau, Ryan Gierke, Aaron M. Harris	2013	123

About Ryan Gierke

Ryan Gierke is a scholar working on Microbiology, Epidemiology, Gastroenterology, Immunology and Infectious Diseases, having authored 34 papers that have together received 5.8k indexed citations. Recurring topics across this work include Pneumonia and Respiratory Infections (26 papers), Respiratory viral infections research (20 papers), Pneumocystis jirovecii pneumonia detection and treatment (8 papers), Immunodeficiency and Autoimmune Disorders (7 papers), Bacterial Infections and Vaccines (5 papers), Child and Adolescent Health (4 papers), Gastroesophageal reflux and treatments (3 papers) and COVID-19 Clinical Research Studies (3 papers). The work is most often cited by research in Modeling and Simulation (590 citations), Infectious Diseases (2.2k citations), Health (546 citations), Obstetrics and Gynecology (476 citations) and Microbiology (373 citations). Ryan Gierke has collaborated with scholars based in United States, Gambia and Zimbabwe. Frequent co-authors include Tamara Pilishvili, Stephanie R. Bialek, Michelle M. Hughes, Tami H. Skoff, Matthew D. Ritchey, Nancy A. Chow, Aron J. Hall, Lucy A. McNamara, Cynthia G. Whitney and Nancy M. Bennett. Their work appears in journals such as MMWR Morbidity and Mortality Weekly Report, Open Forum Infectious Diseases, Clinical Infectious Diseases, The Journal of Infectious Diseases and The Pediatric Infectious Disease Journal.

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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