Akindeh Nji Mbuh, Ngum Lesley Ngum, Niba Peter Thelma Ngwa, Ali Innocent Mbulli, Ayem Ornella Laetitia Oben, Chedjou Jean Paul Kengne, Fomboh Calvino Tah, Ekollo Aristid Herve Mbange, Mbu'u Cyrille Mbanwi, Mbacham Wilfred Fon
Biotechnology Center, University of Yaoundé I, Messa, Yaoundé P.O. Box 3851, Cameroon.
Department of Biochemistry, Faculty of Science, University of Yaoundé I, Messa, Yaoundé P.O. Box 3851, Cameroon.
Children (Basel). 2021 Oct 24;8(11):960. doi: 10.3390/children8110960.
Malaria is still a threat to public health as it remains the first endemic disease in the world. It is a pervasive parasitic disease in tropical and subtropical regions where asymptomatic malaria infection among humans serves as a significant reservoir for transmission. A rapid and correct diagnosis is considered to be an important strategy in the control of the disease especially in children, who are the most vulnerable group. This study assessed the prevalence of asymptomatic malaria in children at the Nkolbisson health area in Yaoundé, Cameroon. A cross-sectional study design and a convenience sampling plan were used. A total of 127 participants were recruited after informed and signed consent from parents and/or guardians. Blood samples were collected by finger-pricking and venipuncture from children aged 6 months to 10 years and then screened for asymptomatic parasitemia by a rapid diagnostic test (RDT), light microscopy (LM) staining with Giemsa and 18S rRNA polymerase chain reaction (PCR) for speciation. The data were analyzed using SPSS version 20 software. The study identified 85 children who were positive from the PCR, 95 positive from the RDT and 71 from the LM, revealing a malaria prevalence of 66.9%, 74.8% and 55.9%, respectively. The prevalence was not observed to be dependent on the sex and age group of the participants. was the predominant species followed by and then . The RDT and LM had the same sensitivity (90.6%) with a slight difference in their specificity (RDT: 57.1%; LM: 54.8%). The RDT also demonstrated higher positive and negative predictive values compared with those of the LM.
疟疾仍然是对公共卫生的一大威胁,因为它依然是全球头号地方病。在热带和亚热带地区,疟疾是一种普遍存在的寄生虫病,人类中的无症状疟疾感染是重要的传播源。快速准确的诊断被视为控制该疾病的一项重要策略,对儿童这一最脆弱群体而言尤为如此。本研究评估了喀麦隆雅温得恩科利比松健康区儿童无症状疟疾的流行情况。采用了横断面研究设计和便利抽样方案。在获得家长和/或监护人的知情并签署同意书后,共招募了127名参与者。通过手指采血和静脉穿刺采集6个月至10岁儿童的血样,然后通过快速诊断测试(RDT)、吉姆萨染色的光学显微镜检查(LM)以及用于物种鉴定的18S rRNA聚合酶链反应(PCR)对无症状寄生虫血症进行筛查。使用SPSS 20版软件对数据进行分析。该研究发现,PCR检测呈阳性的儿童有85名,RDT检测呈阳性的有95名,LM检测呈阳性的有71名,疟疾患病率分别为66.9%、74.8%和55.9%。未观察到患病率取决于参与者的性别和年龄组。 是主要种类,其次是 和 。RDT和LM的敏感性相同(90.6%),特异性略有差异(RDT:57.1%;LM:54.8%)。与LM相比,RDT还显示出更高的阳性和阴性预测值。