Cholera outbreak among the Sama Badjao Indigenous community, Lucena City, Philippines, 2022
DOI:
https://doi.org/10.5365/wpsar.2026.17.2.1223Keywords:
cholera, sama badjao, indigenous community, diarrhea, sanitation and hygieneAbstract
Objective: On 18 October 2022, diarrhoeal cases among the Sama Badjao indigenous community in the Philippines were reported from a tertiary hospital in Lucena City, Quezon Province. An investigation was conducted to confirm the outbreak, profile cases, identify the source of infection, and recommend prevention and control measures.
Methods: Suspected cases were identified through medical records review, active case finding and key informant interviews. Identified cases were interviewed using a structured questionnaire to collect demographic, clinical and exposure information. Rectal swabs and environmental water samples were collected for bacterial isolation and confirmation.
Results: A total of 75 cases were identified, with 40 (53.3%) hospitalized and four fatalities (case fatality rate: 5.3%). Ages ranged from 2 months to 20 years (median: 4 years). Nine of the 15 rectal swabs were positive for Vibrio cholerae Ogawa biotype El Tor. The community practised open defecation, and only 24.7% of households had basic sanitation. Although V. cholerae was not found in water samples, faecal contamination was noted in a community well, and Aeromonas species were isolated, indicating the presence of multiple gastrointestinal pathogens.
Discussion: A cholera outbreak was confirmed among the Sama Badjao community in Lucena City. Environmental assessment indicated that poor sanitation, open defecation and unsafe water sources likely contributed to the outbreak. The high case fatality rate (5.3%) was influenced by delayed care and limited health-care access. These findings emphasize the need for interventions to improve water, sanitation and hygiene practices and provide culturally appropriate public health programmes to reduce cholera risk among vulnerable communities.
Downloads
Downloads
Additional Files
Published
Issue
Section
Categories
License
Copyright (c) 2026 Iris Ann D Bigyan, Catherine P Patricio, Johnette A Peñas, Nelson C Soriano, John Bobbie M Roca, Ray Justin Ventura, Mariz Zheila Blanco-Payuyo, Apple Charm Agulto
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
When the Licensor is an intergovernmental organization, disputes will be resolved by mediation and arbitration unless otherwise agreed.
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
