Ratnayake, RC; (2024) Case-Area Targeted Intervention for the Control of Cholera Epidemics in Crises: From Spatial Mathematical Modelling to Field Evaluation. PhD thesis, London School of Hygiene & Tropical Medicine. DOI: https://doi.org/10.17037/PUBS.04672999

Ouamba, Jean Patrick; Mbarga, Nicole Fouda; Ciglenecki, Iza; Ratnayake, Ruwan; Tchiasso, Dora; Finger, Flavio; Peyraud, Nicolas; Mounchili, Iscander; Boyom, Thierry; Yonta, Cyrille; +10 more... Nwatchok, Liliane; Mouhamadou, Moustapha; Ekedi, Christine; Marcel, Johne; Luquero, Francisco; Ekah, Faustin; Amani, Adidja; Tamakloe, Modeste; Boum, Yap; Esso, Linda; (2023) Implementation of targeted cholera response activities, Cameroon. Bulletin of the World Health Organization, 101 (3). pp. 170-178. ISSN 0042-9686 DOI: https://doi.org/10.2471/BLT.22.288885

Endo, Akira; Murayama, Hiroaki; Abbott, Sam; Ratnayake, Ruwan; Pearson, Carl AB; Edmunds, W John; Fearon, Elizabeth; Funk, Sebastian; (2022) Heavy-tailed sexual contact networks and monkeypox epidemiology in the global outbreak, 2022. Science (New York, N.Y.), 378 (6615). pp. 90-94. ISSN 0036-8075 DOI: https://doi.org/10.1126/science.add4507

Ratnayake, Ruwan; Abdelmagid, Nada; Dooley, Claire; (2022) What we do know (and could know) about estimating population sizes of internally displaced people. Journal of Migration and Health, 6. 100120-. ISSN 2666-6235 DOI: https://doi.org/10.1016/j.jmh.2022.100120

Ratnayake, Ruwan; Checchi, Francesco; Jarvis, Christopher I; Edmunds, W John; Finger, Flavio; (2022) Inference is bliss: Simulation for power estimation for an observational study of a cholera outbreak intervention. PLoS neglected tropical diseases, 16 (2). e0010163-. ISSN 1935-2727 DOI: https://doi.org/10.1371/journal.pntd.0010163

Ratnayake, Ruwan; Peyraud, Nicolas; Ciglenecki, Iza; Gignoux, Etienne; Lightowler, Maria; Azman, Andrew S; Gakima, Primitive; Ouamba, Jean Patrick; Sagara, Joseph Amadomon; Ndombe, Rollin; +12 more... Mimbu, Nana; Ascorra, Alexandra; Epicentre and MSF CATI Working Group; Welo, Placide Okitayemba; Mukamba Musenga, Elisabeth; Miwanda, Berthe; Boum, Yap; Checchi, Francesco; Edmunds, W John; Luquero, Francisco; Porten, Klaudia; Finger, Flavio; (2022) Effectiveness of case-area targeted interventions including vaccination on the control of epidemic cholera: protocol for a prospective observational study. BMJ Open, 12 (7). e061206-. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2022-061206

Ratnayake, Ruwan; Rawashdeh, Fatma; AbuAlRub, Raeda; Al-Ali, Nahla; Fawad, Muhammad; Bani Hani, Mohammad; Zoubi, Saleem; Goyal, Ravi; Al-Amire, Khaldoun; Mahmoud, Refqi; +2 more... AlMaaitah, Rowaida; Parmar, Parveen K; (2022) Rapidly adapted community health strategies to prevent treatment interruption and improve COVID-19 detection for Syrian refugees and the host population with hypertension and diabetes in Jordan. International health, 15 (6). pp. 664-675. ISSN 1876-3413 DOI: https://doi.org/10.1093/inthealth/ihac083

Favas, Caroline; Jarrett, Prudence; Ratnayake, Ruwan; Watson, Oliver J; Checchi, Francesco; (2021) Country differences in transmissibility, age distribution and case-fatality of SARS-CoV-2: a global ecological analysis. International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 114. pp. 210-218. ISSN 1201-9712 DOI: https://doi.org/10.1016/j.ijid.2021.11.004

Ho, Lara Shiu-Yi; Ratnayake, Ruwan; Ansumana, Rashid; Brown, Hannah; (2021) A mixed-methods investigation to understand and improve the scaled-up infection prevention and control in primary care health facilities during the Ebola virus disease epidemic in Sierra Leone. BMC Public Health, 21 (1). 1603-. DOI: https://doi.org/10.1186/s12889-021-11634-7

Parmar, Parveen K; Rawashdah, Fatma; Al-Ali, Nahla; Abu Al Rub, Raeda; Fawad, Muhammad; Al Amire, Khaldoun; Al-Maaitah, Rowaida; Ratnayake, Ruwan; (2021) Integrating community health volunteers into non-communicable disease management among Syrian refugees in Jordan: a causal loop analysis. BMJ open, 11 (4). e045455-. ISSN 2044-6055 DOI: https://doi.org/10.1136/bmjopen-2020-045455

Ratnayake, Ruwan; Rawashdeh, Fatma; Hani, Mohammad Bani; Zoubi, Saleem; Fawad, Muhammad; Abualrub, Raeda; Al-Ali, Nahla; Goyal, Ravi; Al-Amire, Khaldoun; AlMaaitah, Rowaida; +1 more... Parmar, Parveen; (2021) Adaptation of a community health volunteer strategy for the management of hypertension and diabetes and detection of COVID-19 disease: a progamme for Syrian refugees in northern Jordan. The Lancet Global Health, 9 (Sup 1). ISSN 2214-109X DOI: https://doi.org/10.1016/S2214-109X(21)00122-4

Ratnayake, Ruwan; Wittcoff, Alison; Majaribu, John; Nzweve, Jean-Pierre; Katembo, Lambert; Kasonia, Kambale; Nzanzu, Adelard Kalima; Kiapi, Lilian; Ngoy, Pascal; (2021) Early Experiences in the Integration of Non-communicable Diseases into Emergency Primary Health Care, Beni Region, Democratic Republic of the Congo. Annals of global health, 87 (1). 27-. ISSN 2214-9996 DOI: https://doi.org/10.5334/aogh.3019

Dahab, Maysoon; van Zandvoort, Kevin; Flasche, Stefan; Warsame, Abdihamid; Ratnayake, Ruwan; Favas, Caroline; Spiegel, Paul B; Waldman, Ronald J; Checchi, Francesco; (2020) COVID-19 control in low-income settings and displaced populations: what can realistically be done? Conflict and Health, 14 (1). 54-. ISSN 1752-1505 DOI: https://doi.org/10.1186/s13031-020-00296-8

Fawad, Muhammad; Rawashdeh, Fatima; Parmar, Parveen K; Ratnayake, Ruwan; (2020) Simple ideas to mitigate the impacts of the COVID-19 epidemic on refugees with chronic diseases. CONFLICT AND HEALTH, 14 (1). 23-. ISSN 1752-1505 DOI: https://doi.org/10.1186/s13031-020-00277-x

Garry, Sylvia; Abdelmagid, Nada; Baxter, Louisa; Roberts, Natalie; le Polain de Waroux, Olivier; Ismail, Sharif; Ratnayake, Ruwan; Favas, Caroline; Lewis, Elizabeth; Checchi, Francesco; (2020) Considerations for planning COVID-19 treatment services in humanitarian responses. Conflict and Health, 14 (1). 80-. DOI: https://doi.org/10.1186/s13031-020-00325-6

Ratnayake, Ruwan; Finger, Flavio; Azman, Andrew S; Lantagne, Daniele; Funk, Sebastian; Edmunds, W John; Checchi, Francesco; (2020) Highly targeted spatiotemporal interventions against cholera epidemics, 2000-19: a scoping review. Lancet Infectious Diseases, 21 (3). e37-e48. ISSN 1473-3099 DOI: https://doi.org/10.1016/S1473-3099(20)30479-5

Ratnayake, Ruwan; Finger, Flavio; Edmunds, W John; Checchi, Francesco; (2020) Early detection of cholera epidemics to support control in fragile states: estimation of delays and potential epidemic sizes. BMC Medicine, 18 (1). 397-. ISSN 1741-7015 DOI: https://doi.org/10.1186/s12916-020-01865-7

Ratnayake, Ruwan; Rawashdeh, Fatma; AbuAlRub, Raeda; Al-Ali, Nahla; Fawad, Muhammad; Bani Hani, Mohammad; Goyal, Ravi; Greenough, P Gregg; Al-Amire, Khaldoun; AlMaaitah, Rowaida; +1 more... Parmar, Parveen; (2020) Access to Care and Prevalence of Hypertension and Diabetes Among Syrian Refugees in Northern Jordan. JAMA Network Open, 3 (10). e2021678-. ISSN 2574-3805 DOI: https://doi.org/10.1001/jamanetworkopen.2020.21678

Ratnayake, Ruwan; Tammaro, Meghan; Tiffany, Amanda; Kongelf, Anine; Polonsky, Jonathan A; McClelland, Amanda; (2020) People-centred surveillance: a narrative review of community-based surveillance among crisis-affected populations. Lancet Planetary Health, 4 (10). e483-e495. ISSN 2542-5196 DOI: https://doi.org/10.1016/S2542-5196(20)30221-7

Russell, Timothy W; Hellewell, Joel; Jarvis, Christopher I; van Zandvoort, Kevin; Abbott, Sam; Ratnayake, Ruwan; CMMID COVID-19 working group; Flasche, Stefan; Eggo, Rosalind M; Edmunds, W John; +1 more... Kucharski, Adam J; (2020) Estimating the infection and case fatality ratio for coronavirus disease (COVID-19) using age-adjusted data from the outbreak on the Diamond Princess cruise ship, February 2020. Euro Surveill, 25 (12). ISSN 1560-7917 DOI: https://doi.org/10.2807/1560-7917.ES.2020.25.12.2000256

van Zandvoort, Kevin; Jarvis, Christopher I; Pearson, Carl AB; Davies, Nicholas G; CMMID COVID-19 working group; Ratnayake, Ruwan; Russell, Timothy W; Kucharski, Adam J; Jit, Mark; Flasche, Stefan; +2 more... Eggo, Rosalind M; Checchi, Francesco; (2020) Response strategies for COVID-19 epidemics in African settings: a mathematical modelling study. BMC Medicine, 18 (1). 324-. ISSN 1741-7015 DOI: https://doi.org/10.1186/s12916-020-01789-2

Falb, Kathryn; Laird, Betsy; Ratnayake, Ruwan; Rodrigues, Katherine; Annan, Jeannie; (2019) The ethical contours of research in crisis settings: five practical considerations for academic institutional review boards and researchers. Disasters, 43 (4). pp. 711-726. ISSN 0361-3666 DOI: https://doi.org/10.1111/disa.12398

Kehlenbrink, Sylvia; Smith, James; Ansbro, Éimhín; Fuhr, Daniela C; Cheung, Anson; Ratnayake, Ruwan; Boulle, Philippa; Jobanputra, Kiran; Perel, Pablo; Roberts, Bayard; (2019) The burden of diabetes and use of diabetes care in humanitarian crises in low-income and middle-income countries. LANCET DIABETES & ENDOCRINOLOGY, 7 (8). pp. 638-647. ISSN 2213-8587 DOI: https://doi.org/10.1016/S2213-8587(19)30082-8

Kuehne, Anna; Keating, Patrick; Polonsky, Jonathan; Haskew, Christopher; Schenkel, Karl; Le Polain de Waroux, Olivier; Ratnayake, Ruwan; (2019) Event-based surveillance at health facility and community level in low-income and middle-income countries: a systematic review. BMJ Global Health, 4 (6). e001878-. DOI: https://doi.org/10.1136/bmjgh-2019-001878

Polonsky, Jonathan A; Baidjoe, Amrish; Kamvar, Zhian N; Cori, Anne; Durski, Kara; Edmunds, W John; Eggo, Rosalind M; Funk, Sebastian; Kaiser, Laurent; Keating, Patrick; +9 more... de Waroux, Olivier le Polain; Marks, Michael; Moraga, Paula; Morgan, Oliver; Nouvellet, Pierre; Ratnayake, Ruwan; Roberts, Chrissy H; Whitworth, Jimmy; Jombart, Thibaut; (2019) Outbreak analytics: a developing data science for informing the response to emerging pathogens. Philosophical Transactions of the Royal Society B: Biological Sciences, 374 (1776). 20180276-. ISSN 0962-8436 DOI: https://doi.org/10.1098/rstb.2018.0276

Spiegel, Paul; Ratnayake, Ruwan; Hellman, Nora; Ververs, Mija; Ngwa, Moise; Wise, Paul H; Lantagne, Daniele; (2019) Responding to epidemics in large-scale humanitarian crises: a case study of the cholera response in Yemen, 2016-2018. BMJ Global Health, 4 (4). e001709-. DOI: https://doi.org/10.1136/bmjgh-2019-001709

Sommer, Marni; Schmitt, Margaret L; Ogello, Tom; Mathenge, Penninah; Mark, Magdalena; Clatworthy, David; Khandakji, Samanatha; Ratnayake, Ruwan; (2018) Pilot testing and evaluation of a toolkit for menstrual hygiene management in emergencies in three refugee camps in Northwest Tanzania. Journal of International Humanitarian Action, 3 (1). ISSN 2364-3412 DOI: https://doi.org/10.1186/s41018-018-0034-7

Higgins, Eilidh M; Polich, Erin; Sahu, Maitreyi; Mearns, Stacey; Ratnayake, Ruwan; (2017) Sustaining community event-based surveillance in Sierra Leone. Online Journal of Public Health Informatics, 9 (1). DOI: https://doi.org/10.5210/ojphi.v9i1.7706

McMahon, Shannon A; Ho, Lara S; Scott, Kerry; Brown, Hannah; Miller, Laura; Ratnayake, Ruwan; Ansumana, Rashid; (2017) "We and the nurses are now working with one voice": How community leaders and health committee members describe their role in Sierra Leone's Ebola response. BMC health services research, 17 (1). 495-. ISSN 1472-6963 DOI: https://doi.org/10.1186/s12913-017-2414-x

Ratnayake, Ruwan; Ratto, Jeffrey; Hardy, Colleen; Blanton, Curtis; Miller, Laura; Choi, Mary; Kpaleyea, John; Momoh, Pheabean; Barbera, Yolanda; (2017) The Effects of an Integrated Community Case Management Strategy on the Appropriate Treatment of Children and Child Mortality in Kono District, Sierra Leone: A Program Evaluation. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 97 (3). pp. 964-973. ISSN 0002-9637 DOI: https://doi.org/10.4269/ajtmh.17-0040

Schmitt, Margaret L; Clatworthy, David; Ratnayake, Ruwan; Klaesener-Metzner, Nicole; Roesch, Elizabeth; Wheeler, Erin; Sommer, Marni; (2017) Understanding the menstrual hygiene management challenges facing displaced girls and women: findings from qualitative assessments in Myanmar and Lebanon. CONFLICT AND HEALTH, 11 (1). 19-. ISSN 1752-1505 DOI: https://doi.org/10.1186/s13031-017-0121-1

d'Harcourt, Emmanuel; Ratnayake, Ruwan; Kim, Anna; (2017) How can the sustainable development goals improve the lives of people affected by conflict? BULLETIN OF THE WORLD HEALTH ORGANIZATION, 95 (2). pp. 157-158. ISSN 0042-9686 DOI: https://doi.org/10.2471/BLT.16.179622

Ratnayake, Ruwan; Crowe, Samuel J; Jasperse, Joseph; Privette, Grayson; Stone, Erin; Miller, Laura; Hertz, Darren; Fu, Clementine; Maenner, Matthew J; Jambai, Amara; +1 more... Morgan, Oliver; (2016) Assessment of Community Event-Based Surveillance for Ebola Virus Disease, Sierra Leone, 2015. EMERGING INFECTIOUS DISEASES, 22 (8). pp. 1431-1437. ISSN 1080-6040 DOI: https://doi.org/10.3201/eid2208.160205

Ratnayake, Ruwan; Ho, Lara S; Ansumana, Rashid; Brown, Hannah; Borchert, Matthias; Miller, Laura; Kratz, Thomas; McMahon, Shannon A; Sahr, Foday; (2016) Improving Ebola infection prevention and control in primary healthcare facilities in Sierra Leone: a single-group pretest post-test, mixed-methods study. BMJ GLOBAL HEALTH, 1 (4). e000103-. ISSN 2059-7908 DOI: https://doi.org/10.1136/bmjgh-2016-000103

Stone, Erin; Miller, Laura; Jasperse, Joseph; Privette, Grayson; Diez Beltran, Juan Cruz; Jambai, Amara; Kpaleyea, John; Makavore, Alfred; Kamara, Mohamed Foday; Ratnayake, Ruwan; (2016) Community Event-Based Surveillance for Ebola Virus Disease in Sierra Leone: Implementation of a National-Level System During a Crisis. PLoS Currents, 8. ecurrents.outbreaks.d119c71125b5cce312b9700d744c56-. ISSN 2157-3999 DOI: https://doi.org/10.1371/currents.outbreaks.d119c71125b5cce312b9700d744c56d8

Crowe, Sam; Hertz, Darren; Maenner, Matt; Ratnayake, Ruwan; Baker, Pieter; Lash, R Ryan; Klena, John; Lee-Kwan, Seung Hee; Williams, Candice; Jonnie, Gabriel T; +9 more... Gorina, Yelena; Anderson, Alicia; Saffa, Gbessay; Carr, Dana; Tuma, Jude; Miller, Laura; Turay, Alhajie; Belay, Ermias; Centers for Disease Control and Prevention (CDC); (2015) A plan for community event-based surveillance to reduce Ebola transmission - Sierra Leone, 2014-2015. Morbidity and Mortality Weekly Report, 64 (3). pp. 70-73. ISSN 0149-2195 https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6403a7...

Ho, Lara S; Labrecque, Guillaume; Batonon, Isatou; Salsi, Viviana; Ratnayake, Ruwan; (2015) Effects of a community scorecard on improving the local health system in Eastern Democratic Republic of Congo: qualitative evidence using the most significant change technique. CONFLICT AND HEALTH, 9 (1). 27-. ISSN 1752-1505 DOI: https://doi.org/10.1186/s13031-015-0055-4

Najjemba, Robinah; Kiapi, Lilian; Demissie, Shiferaw Dechasa; Gossaye, Tadesse; Engida, Mezgebu; Ratnayake, Ruwan; Degefie, Tedbabe; Legesse, Hailemariam; Lemma, Ataklti Fisseha; Getachew, Hiwot; +1 more... Gebrie, Muluken; (2014) Integrated community case management: quality of care and adherence to medication in Beneshangul-Gumuz Region, Ethiopia. Ethiopian Medical Journal, 52 Sup (Suppl ). pp. 83-90. ISSN 0014-1755 https://researchonline.lshtm.ac.uk/id/eprint/4665065

Ratnayake, Ruwan; Degomme, Olivier; Roberts, Bayard; Spiegel, Paul; (2014) Conflict and Health: seven years of advancing science in humanitarian crises. Conflict and health, 8 (1). 7-. ISSN 1752-1505 DOI: https://doi.org/10.1186/1752-1505-8-7

Gaudreau, Christiane; Ratnayake, Ruwan; Pilon, Pierre A; Gagnon, Simon; Roger, Michel; Lévesque, Simon; (2011) Ciprofloxacin-resistant Shigella sonnei among men who have sex with men, Canada, 2010. Emerging Infectious Diseases, 17 (9). pp. 1747-1750. ISSN 1080-6040 DOI: https://doi.org/10.3201/eid1709.102034

Guha-Sapir, Debarati; Ratnayake, Ruwan; (2009) Consequences of ongoing civil conflict in Somalia: evidence for public health responses. PLOS MEDICINE, 6 (8). e1000108-. ISSN 1549-1676 DOI: https://doi.org/10.1371/journal.pmed.1000108

Ratnayake, Ruwan; Degomme, Olivier; Guha-Sapir, Debarati; (2009) Coming together to document mortality in conflict situations: proceedings of a symposium. Conflict and Health, 3 (1). 2-. ISSN 1752-1505 DOI: https://doi.org/10.1186/1752-1505-3-2

Ratnayake, Ruwan; (2008) Building capacity to address emerging problems in developing countries: intentional self-poisoning and pesticides. Open Medicine, 2 (2). e51-e53. ISSN 1911-2092 https://researchonline.lshtm.ac.uk/id/eprint/4665073