Background The aim of the current study was to estimate the population prevalence of trachoma in non-indigenous populations in the Baixo Jaguaribe micro-region, in the state of Ceará, northeast region of Brazil, 2021–2022. Methods A population-based prevalence survey focusing on detecting cases of trachomatous inflammation-follicular (TF) in children aged 1−9 y and trachomatous trichiasis (TT) ‘unknown to the health system’ in people aged ≥15 y, was conducted in rural areas of the Baixo Jaguaribe micro-region in the state of Ceará. Indigenous populations will be further researched. Results There was no detection of cases of TF and TT. In 900 households, 2234 people were examined. In the Baixo Jaguaribe micro-region, females (54.6%; 1219/2234) and the mixed/Pardo-Brazilian ethnicity (68.1%; 1521/2234) predominated. The most commonly reported educational level was elementary and middle school (41.8%; 702/1679). In 56.2% (506/900) of households, there was a source of water within the household. The monthly income range of 50%−100% of the minimum wage predominated in the families of the Baixo Jaguaribe micro-region (43.1%; 388/900). Conclusions Although no cases of TF and TT were detected in the Baixo Jaguaribe micro-region in the state of Ceará during the study period, considering the historical endemicity, we emphasise the need for monitoring and sustainability of surveillance actions in areas at risk for trachoma, common contexts for neglected populations.

中文翻译：

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巴西东北部塞阿拉州非土著 Baixo Jaguaribe 微区的沙眼患病率

背景 本研究的目的是估算 2021 年至 2022 年巴西东北地区塞阿拉州 Baixo Jaguaribe 微区域非土著人群中沙眼的患病率。方法 在农村地区开展了一项基于人群的患病率调查，重点检测 1-9 岁儿童中的沙眼性滤泡性炎症 (TF) 病例和 15 岁以上人群中“卫生系统未知”的沙眼性倒睫 (TT) 病例。塞阿拉州 Baixo Jaguaribe 微区的区域。土著居民将得到进一步研究。结果未发现TF、TT病例。共检查900户、2234人。在 Baixo Jaguaribe 微区域，女性（54.6%；1219/2234）和混血/帕尔多巴西人（68.1%；1521/2234）占主导地位。最常见的教育水平是小学和初中（41.8%；702/1679）。56.2% (506/900) 的家庭拥有水源。Baixo Jaguaribe 微型区域的家庭的月收入范围主要为最低工资的 50%−100%（43.1%；388/900）。结论 虽然在研究期间塞阿拉州 Baixo Jaguaribe 微区没有发现 TF 和 TT 病例，但考虑到历史流行性，我们强调有必要在沙眼风险地区进行监测和监测行动的可持续性，被忽视人群的共同背景。