Joyce U. Nyiro

950 total citations
24 papers, 482 citations indexed

About

Joyce U. Nyiro is a scholar working on Epidemiology, Pulmonary and Respiratory Medicine and Infectious Diseases. According to data from OpenAlex, Joyce U. Nyiro has authored 24 papers receiving a total of 482 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Epidemiology, 6 papers in Pulmonary and Respiratory Medicine and 5 papers in Infectious Diseases. Recurrent topics in Joyce U. Nyiro's work include Respiratory viral infections research (15 papers), Pneumonia and Respiratory Infections (9 papers) and Influenza Virus Research Studies (6 papers). Joyce U. Nyiro is often cited by papers focused on Respiratory viral infections research (15 papers), Pneumonia and Respiratory Infections (9 papers) and Influenza Virus Research Studies (6 papers). Joyce U. Nyiro collaborates with scholars based in Kenya, United Kingdom and United States. Joyce U. Nyiro's co-authors include J. Anthony G. Scott, Mary Slack, Osman Abdullahi, D. James Nokes, Patrick K. Munywoki, Charles Sande, Isaiah Mwangi, Charles R. Newton, Daniel R. Feikin and Moses Ndiritu and has published in prestigious journals such as JAMA, PLoS ONE and The Journal of Infectious Diseases.

In The Last Decade

Joyce U. Nyiro

22 papers receiving 475 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Joyce U. Nyiro Kenya	10	407	137	87	83	39	24	482
Irene Picciolli Italy	10	391 1.0×	48 0.4×	40 0.5×	95 1.1×	58 1.5×	17	508
Eitan N. Berezin Brazil	15	304 0.7×	88 0.6×	115 1.3×	67 0.8×	92 2.4×	27	453
Charles Omosigho Gambia	7	458 1.1×	263 1.9×	55 0.6×	55 0.7×	40 1.0×	8	550
Romina Libster Argentina	10	302 0.7×	118 0.9×	85 1.0×	98 1.2×	123 3.2×	20	455
Vanda Moniaga United States	7	275 0.7×	82 0.6×	135 1.6×	43 0.5×	67 1.7×	10	422
Pia Toikka Finland	8	674 1.7×	191 1.4×	83 1.0×	71 0.9×	98 2.5×	9	732
Joana Saldanha Portugal	11	485 1.2×	240 1.8×	68 0.8×	115 1.4×	63 1.6×	36	619
Jacinta Bowman Australia	12	429 1.1×	184 1.3×	111 1.3×	122 1.5×	43 1.1×	16	594
BRIAN M. GREENWOOD Gambia	9	377 0.9×	88 0.6×	77 0.9×	83 1.0×	74 1.9×	9	485
Francisco Giménez‐Sánchez Spain	13	209 0.5×	111 0.8×	119 1.4×	56 0.7×	30 0.8×	27	407

Countries citing papers authored by Joyce U. Nyiro

Since Specialization

Citations

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

Fields of papers citing papers by Joyce U. Nyiro

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joyce U. Nyiro. 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 Joyce U. Nyiro. The network helps show where Joyce U. Nyiro may publish in the future.

Co-authorship network of co-authors of Joyce U. Nyiro

This figure shows the co-authorship network connecting the top 25 collaborators of Joyce U. Nyiro. A scholar is included among the top collaborators of Joyce U. Nyiro based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Joyce U. Nyiro. Joyce U. Nyiro is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Lambisia, Arnold W., John Mwita Morobe, Nickson Murunga, et al.. (2025). Emergence and transmission dynamics of the FY.4 Omicron variant in Kenya. Virus Evolution. 11(1). veaf035–veaf035.

Nyiro, Joyce U., Harish Nair, Zakariya Sheikh, et al.. (2025). External Validation of Pediatric Pneumonia and Bronchiolitis Risk Scores to Predict Mortality in Children Hospitalized in Kenya: A Retrospective Cohort Study. The Journal of Infectious Diseases. 233(1). e230–e238.

Nyiro, Joyce U., Bryan O. Nyawanda, Martin Mutunga, et al.. (2024). The cost of care for children hospitalized with respiratory syncytial virus (RSV) associated lower respiratory infection in Kenya. BMC Public Health. 24(1). 2410–2410. 3 indexed citations

Baral, Ranju, Elkanah Otiang, John O. Odiyo, et al.. (2024). Cost of delivering childhood RSV prevention interventions to the health system in Kenya: a prospective analysis. BMJ Open. 14(11). e084207–e084207. 2 indexed citations

Nyawanda, Bryan O., Joyce U. Nyiro, Elisabeth Vodicka, et al.. (2023). Respiratory Syncytial Virus (RSV) Disease and Prevention Products: Knowledge, Attitudes, and Preferences of Kenyan Healthcare Workers in Two Counties in 2021. Vaccines. 11(6). 1055–1055. 4 indexed citations

Koltai, Mihály, Jocelyn Moyes, Bryan O. Nyawanda, et al.. (2023). Estimating the cost-effectiveness of maternal vaccination and monoclonal antibodies for respiratory syncytial virus in Kenya and South Africa. BMC Medicine. 21(1). 120–120. 17 indexed citations

Nyawanda, Bryan O., Nickson Murunga, Nancy A. Otieno, et al.. (2023). Estimates of the national burden of respiratory syncytial virus in Kenyan children aged under 5 years, 2010–2018. BMC Medicine. 21(1). 122–122. 11 indexed citations

Gallagher, Katherine E., Joyce U. Nyiro, Charles N. Agoti, et al.. (2023). Symptom prevalence and secondary attack rate of SARS‐CoV‐2 in rural Kenyan households: A prospective cohort study. Influenza and Other Respiratory Viruses. 17(9). e13185–e13185. 3 indexed citations

Otieno, James R., Everlyn Kamau, John Mwita Morobe, et al.. (2023). Rhinovirus dynamics across different social structures. PubMed. 1(1). 6–6. 2 indexed citations

10.

Nyagwange, James, Kennedy Mwai, Henry Karanja, et al.. (2022). Serum immunoglobulin G and mucosal immunoglobulin A antibodies from prepandemic samples collected in Kilifi, Kenya, neutralize SARS-CoV-2 in vitro. International Journal of Infectious Diseases. 127. 11–16. 4 indexed citations

11.

Kamau, Everlyn, James R. Otieno, Nickson Murunga, et al.. (2020). Genomic epidemiology and evolutionary dynamics of respiratory syncytial virus group B in Kilifi, Kenya, 2015–17. Virus Evolution. 6(2). veaa050–veaa050. 4 indexed citations

12.

Ngoi, Joyce M., Grieven P. Otieno, James R. Otieno, et al.. (2020). Epidemiological and evolutionary dynamics of influenza B virus in coastal Kenya as revealed by genomic analysis of strains sampled over a single season. Virus Evolution. 6(2). veaa045–veaa045. 3 indexed citations

13.

Nyiro, Joyce U., et al.. (2020). Transmission and evolutionary dynamics of human coronavirus OC43 strains in coastal Kenya investigated by partial spike sequence analysis, 2015–16. Virus Evolution. 6(1). veaa031–veaa031. 2 indexed citations

14.

Ngoi, Joyce M., James R. Otieno, Grieven P. Otieno, et al.. (2020). Genetic characterization of influenza A(H3N2) viruses circulating in coastal Kenya, 2009‐2017. Influenza and Other Respiratory Viruses. 14(3). 320–330. 7 indexed citations

15.

Nyiro, Joyce U., Elizabeth A. Bukusi, Dufton Mwaengo, et al.. (2020). Implications of gestational age at antenatal care attendance on the successful implementation of a maternal respiratory syncytial virus (RSV) vaccine program in coastal Kenya. BMC Public Health. 20(1). 1723–1723. 4 indexed citations

16.

Nyiro, Joyce U., Ivy K. Kombe, Charles Sande, et al.. (2017). Defining the vaccination window for respiratory syncytial virus (RSV) using age-seroprevalence data for children in Kilifi, Kenya. PLoS ONE. 12(5). e0177803–e0177803. 39 indexed citations

17.

Nyiro, Joyce U., Charles Sande, Martin Mutunga, et al.. (2015). Quantifying maternally derived respiratory syncytial virus specific neutralising antibodies in a birth cohort from coastal Kenya. Vaccine. 33(15). 1797–1801. 28 indexed citations

18.

Nyiro, Joyce U., Eduard J. Sanders, Caroline Ngetsa, et al.. (2011). Seroprevalence, predictors and estimated incidence of maternal and neonatal Herpes Simplex Virus Type 2 infection in semi-urban women in Kilifi, Kenya. BMC Infectious Diseases. 11(1). 155–155. 16 indexed citations

19.

Okuku, Haile Selassie, Eduard J. Sanders, Joyce U. Nyiro, et al.. (2011). Factors Associated With Herpes Simplex Virus Type 2 Incidence in a Cohort of Human Immunodeficiency Virus Type 1-Seronegative Kenyan Men and Women Reporting High-Risk Sexual Behavior. Sexually Transmitted Diseases. 38(9). 837–844. 21 indexed citations

20.

Cowgill, Karen, Moses Ndiritu, Joyce U. Nyiro, et al.. (2006). Effectiveness of Haemophilus influenzae Type b Conjugate Vaccine Introduction Into Routine Childhood Immunization in Kenya. JAMA. 296(6). 671–671. 139 indexed citations

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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