Andrew Obala

1.1k citations

53 papers · 571 indexed · h-index 16

Impact in

Parasitology top 10%
- Parasites and Host Interactions
Public Health, Environmental and Occupational Health top 5%
- Malaria Research and Control
- Mosquito-borne diseases and control

Papers in ⓘ

Public Health, Environmental and Occupational Health 33
- Malaria Research and Control 32
- Mosquito-borne diseases and control 24
Pediatrics, Perinatology and Child Health 12
- Global Maternal and Child Health 11

Co-authors: Wendy Prudhomme O’Meara (22 shared papers)Barasa Khwa-Otsyula (6 shared papers)Chrispinus J Simiyu (8 shared papers)Steve M. Taylor (18 shared papers)Judith Mangeni (15 shared papers)Diana Menya (8 shared papers)Lucy Abel (14 shared papers)Kelsey M. Sumner (8 shared papers)
Journals: Malaria Journal (6 papers)Nature Communications (3 papers)Scientific Reports (2 papers)American Journal of Tropical Medicine and Hygiene (2 papers)The Journal of Infectious Diseases (2 papers)
Partner nations: Kenya United States United Kingdom

In The Last Decade

Andrew Obala

49 papers receiving 554 citations

Peers

Countries citing papers authored by Andrew Obala

Since Specialization

Citations

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

Fields of papers citing papers by Andrew Obala

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Andrew Obala, 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 Andrew Obala Line = papers co-authored together Andrew Obala links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 53 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	“Not too far to walk”: the influence of distance on place of delivery in a western Kenya health demographic surveillance system BMC Health Services Research ·Emily Mwaliko, Raymond Downing, Wendy Prudhomme O’Meara, Dinah Chelagat, Andrew Obala, Timothy Downing, Chrispinus J Simiyu, David Odhiambo, Paul Ayuo, Diana Menya, Barasa Khwa-Otsyula	2014	37
2	Patient costs of hypertension care in public health care facilities in Kenya The International Journal of Health Planning and Management ·Robinson Oyando, Martin Njoroge, Peter Nguhiu, Fredrick Kirui, Jane Mbui, Antipa Sigilai, Zipporah Bukania, Andrew Obala, Kenneth Munge, Anthony Etyang, Edwine Barasa	2019	37
3	Nosocomial infections in developing countries: Cost effective control and prevention East African Medical Journal ·Henry Nyamogoba, Andrew Obala	2002	35
4	Multiple cardiovascular risk factors in Kenya: evidence from a health and demographic surveillance system using the WHO STEPwise approach to chronic disease risk factor surveillance Heart ·Gerald S. Bloomfield, Ann Mwangi, Patrick Chege, Chrispinus J Simiyu, Daniel Aswa, David Odhiambo, Andrew Obala, Paul Ayuo, Barasa Khwa-Otsyula	2013	35
5	Accessibility, availability and affordability of anti-malarials in a rural district in Kenya after implementation of a national subsidy scheme Malaria Journal ·Nathan Smith, Andrew Obala, Chrispinus J Simiyu, Diana Menya, Barasa Khwa-Otsyula, Wendy Prudhomme O’Meara	2011	30
6	Genotyping cognate Plasmodium falciparum in humans and mosquitoes to estimate onward transmission of asymptomatic infections Nature Communications ·Kelsey M. Sumner, Elizabeth Freedman, Lucy Abel, Andrew Obala, Brian W. Pence, Amy Wesolowski, Steven R. Meshnick, Wendy Prudhomme-O’Meara, Steve M. Taylor	2021	29
7	Patient costs of diabetes mellitus care in public health care facilities in Kenya The International Journal of Health Planning and Management ·Robinson Oyando, Martin Njoroge, Peter Nguhiu, Antipa Sigilai, Fredrick Kirui, Jane Mbui, Zipporah Bukania, Andrew Obala, Kenneth Munge, Anthony Etyang, Edwine Barasa	2019	29
8	Expanding Access to Malaria Diagnosis through Retail Shops in Western Kenya: What Do Shop Workers Think? PubMed ·Andria Rusk, Catherine Goodman, Violet Naanyu, Beatrice Koech, Andrew Obala, Wendy Prudhomme O’Meara	2013	20
9	Factors associated with HIV testing among men who have sex with men in Western Kenya: a cross-sectional study International Journal of STD & AIDS ·Sylvia Shangani, Violet Naanyu, Ann Mwangi, Heleen Vermandere, Ethan H. Mereish, Andrew Obala, Davy Vanden Broeck, John E. Sidle, Don Operario	2016	19
10	Webuye Health and Demographic Surveillance Systems Baseline Survey of Soil-Transmitted Helminths and Intestinal Protozoa among Children up to Five Years Journal of Tropical Medicine ·Andrew Obala, Chrispinus J Simiyu, David Odhiambo, V. Nanyu, Patrick Chege, Raymond Downing, Emily Mwaliko, Ann Mwangi, Diana Menya, Dinah Chelagat, Henry Nyamogoba, Paul Ayuo, Wendy Prudhomme O’Meara, Marc Twagirumukiza, D. Vandenbroek, Barasa Otsyula, Jan De Maeseneer	2013	19
11	What Is Threatening the Effectiveness of Insecticide-Treated Bednets? A Case-Control Study of Environmental, Behavioral, and Physical Factors Associated with Prevention Failure PLoS ONE ·Andrew Obala, Judith Mangeni, Alyssa Platt, Daniel Aswa, Lucy Abel, Jane Namae, Wendy Prudhomme O’Meara	2015	18
12	Does anti-malarial drug knowledge predict anti-malarial dispensing practice in drug outlets? A survey of medicine retailers in western Kenya Malaria Journal ·Andria Rusk, Nathan Smith, Diana Menya, Andrew Obala, Chrispinus J Simiyu, Barasa Khwa-Otsyula, Wendy Prudhomme O’Meara	2012	17
13	High-resolution micro-epidemiology of parasite spatial and temporal dynamics in a high malaria transmission setting in Kenya Nature Communications ·Cody S. Nelson, Kelsey M. Sumner, Elizabeth Freedman, Joseph W. Saelens, Andrew Obala, Judith Mangeni, Steve M. Taylor, Wendy Prudhomme O’Meara	2019	16
14	Dynamic malaria hotspots in an open cohort in western Kenya Scientific Reports ·Alyssa Platt, Andrew Obala, Charlie MacIntyre, Barasa Otsyula, Wendy Prudhomme O’ Meara	2018	16
15	Overlap Extension Barcoding for the Next Generation Sequencing and Genotyping of Plasmodium falciparum in Individual Patients in Western Kenya Scientific Reports ·Brandt Levitt, Andrew Obala, Scott Langdon, David L. Corcoran, Wendy Prudhomme O’Meara, Steve M. Taylor	2017	15
16	Direct Estimation of Sensitivity of Plasmodium falciparum Rapid Diagnostic Test for Active Case Detection in a High-Transmission Community Setting American Journal of Tropical Medicine and Hygiene ·Steve M. Taylor, Kelsey M. Sumner, Betsy Freedman, Judith Mangeni, Andrew Obala, Wendy Prudhomme O’Meara	2019	15
17	The prevalence and density of asymptomatic Plasmodium falciparum infections among children and adults in three communities of western Kenya Malaria Journal ·Christina Salgado, George Ayodo, Michael D. Macklin, Meetha P. Gould, Srinivas Nallandhighal, Eliud O. Odhiambo, Andrew Obala, Wendy Prudhomme O’Meara, Chandy C. John, Tuan M. Tran	2021	13
18	Impact of asymptomatic Plasmodium falciparum infection on the risk of subsequent symptomatic malaria in a longitudinal cohort in Kenya eLife ·Kelsey M. Sumner, Judith Mangeni, Andrew Obala, Elizabeth Freedman, Lucy Abel, Steven R. Meshnick, Jessie K. Edwards, Brian W. Pence, Wendy Prudhomme-O’Meara, Steve M. Taylor	2021	13
19	Nutrition status of children in Kasese district at the Uganda – Congo border East African Medical Journal ·James Tumwine, Andrew Obala	2002	13
20	Effects of HIV-1 infection on malaria parasitemia in milo sub-location, western Kenya BMC Research Notes ·Erick Kipkoech Rutto, Joshua Nyagol, Julius Oyugi, Samson Ndege, Noel Onyango, Andrew Obala, Chrispinus J Simiyu, Gye Boor, Winfrida Cheriro, Barasa Otsyula, B. Estambale	2015	12

About Andrew Obala

Andrew Obala is a scholar working on Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health, Epidemiology, Infectious Diseases and Parasitology, having authored 53 papers that have together received 571 indexed citations. Recurring topics across this work include Malaria Research and Control (32 papers), Mosquito-borne diseases and control (24 papers), Global Maternal and Child Health (11 papers), Parasites and Host Interactions (5 papers), COVID-19 epidemiological studies (4 papers), Parasite Biology and Host Interactions (3 papers), Child Nutrition and Water Access (3 papers) and Diverse Scientific Research Studies (3 papers). The work is most often cited by research in Parasitology (66 citations), Public Health, Environmental and Occupational Health (295 citations), Applied Microbiology and Biotechnology (14 citations), Pediatrics, Perinatology and Child Health (129 citations) and Finance (47 citations). Andrew Obala has collaborated with scholars based in Kenya, United States and United Kingdom. Frequent co-authors include Wendy Prudhomme O’Meara, Barasa Khwa-Otsyula, Chrispinus J Simiyu, Steve M. Taylor, Judith Mangeni, Diana Menya, Lucy Abel, Kelsey M. Sumner, Elizabeth Freedman and Paul Ayuo. Their work appears in journals such as Malaria Journal, Nature Communications, Scientific Reports, American Journal of Tropical Medicine and Hygiene and The Journal of Infectious Diseases.

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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