Plasmodium vivax and Plasmodium falciparum infections in the Republic of Djibouti: evaluation of their prevalence and potential determinants

• Published in: Malaria Journal
• Main Authors: Khaireh Bouh Abdi, Briolant Sébastien, Pascual Aurélie, Mokrane Madjid, Machault Vanessa, Travaillé Christelle, Khaireh Mohamed Abdi, Farah Ismail Hassan, Ali Habib Moussa, Abdi Abdul-Ilah Ahmed, Ayeh Souleiman, Darar Houssein Youssouf, Ollivier Lénaïck, Waiss Mohamed Killeh, Bogreau Hervé, Rogier Christophe, Pradines Bruno
• Format: Article in Journal/Newspaper
• Language: English
• Published: BMC 2012
• Subjects: Malaria; Plasmodium falciparum; Plasmodium vivax; Seroprevalence; Serological marker; Djibouti; Arctic medicine. Tropical medicine; RC955-962; Infectious and parasitic diseases; RC109-216; Arctic
• Online Access: https://doi.org/10.1186/1475-2875-11-395; https://doaj.org/article/28b77c589365495987912eade5d14bd6

Abstract Background Formerly known as a hypoendemic malaria country, the Republic of Djibouti declared the goal of pre-eliminating malaria in 2006. The aim of the present study was to evaluate the prevalence of Plasmodium falciparum , Plasmodium vivax and mixed infections in the Djiboutian population by using serological tools and to identify potential determinants of the disease and hotspots of malaria transmission within the country. Methods The prevalence of P . falciparum and P . vivax within the districts of the capital city and the rest of the Republic of Djibouti were assessed using 13 and 2 serological markers, respectively. The relationship between the immune humeral response to P . falciparum and P . vivax and variables such as age, gender, wealth status, urbanism, educational level, distance to rivers/lakes, living area, having fever in the last month, and staying in a malaria-endemic country more than one year was estimated and analysed by questionnaires administered to 1910 Djiboutians. Multivariate ordinal logistic regression models of the immune humeral response were obtained for P . falciparum and P . vivax . Results The P . falciparum and P . vivax seroprevalence rates were 31.5%, CI95% [29.4-33.7] and 17.5%, CI95% [15.8-19.3], respectively. Protective effects against P . falciparum and P . vivax were female gender, educational level, and never having visited a malaria-endemic area for more than one year. For P . falciparum only, a protective effect was observed for not having a fever in the last month, living more than 1.5 km away from lakes and rivers, and younger ages. Conclusions This is the first study that assessed the seroprevalence of P . vivax in the Republic of Djibouti. It is necessary to improve knowledge of this pathogen in order to create an effective elimination programme. As supported by recent observations on the subject, the Republic of Djibouti has probably demonstrated a real decrease in the transmission of P . falciparum in the past seven years, which should encourage ...