Possible introduction of to urban areas determined by epidemiological and clinical profiles of patients with cutaneous leishmaniasis in Casablanca (Morocco).

Possible introduction of to urban areas determined by epidemiological and clinical profiles of patients with cutaneous leishmaniasis in Casablanca (Morocco).

Baghad, Bouchra;Razanapinaritra, Rojosoa;Maksouri, Hasnaa;El Bouri, Hicham;Outlioua, Ahmed;Fellah, Hassan;Lemrani, Meryem;Akarid, Khadija;Martin-Sanchez, Joaquina;Chiheb, Soumiya;Riyad, Myriam;
Parasite epidemiology and control 2020 Vol. 9 pp. e00129
296
baghad2020possibleparasite

Abstract

Leishmaniases are a group of infectious diseases caused by protozoan parasites and are transmitted by the bites of infected phlebotomine sandflies. The heterogeneity of these diseases is influenced by both parasitic properties and host factors. Cutaneous leishmaniasis (CL) is a major public health problem in Morocco, where the geographical expansion of CL (particularly CL caused by ), the heterogeneous appearance of lesions and the difficulty in diagnosing CL contribute to late diagnosis of CL and delayed treatment of patients. Therefore, the main objective of this study was to describe the epidemiological and clinical profiles of patients with CL diagnosed in Casablanca (Morocco), which is a non-endemic area for CL. A cross-sectional study was conducted between 2010 and 2016, during which epidemiological and clinical data were collected from patients that met the inclusion criteria through an information sheet. Then, samples were obtained from each patient for parasitological and molecular diagnosis, and only patients with positive polymerase chain reaction and genotyping results were included in the study. Overall, 106 cases of CL were genotyped, of which 61 (57.5%) were caused by L. , 38 (35.9%) by L. and 7 (6.6%) by L. . While all age groups were affected, CL cases wherein L. was the causative agent were most frequently diagnosed in children aged 0-9 years ( = 0.005), whereas those caused by L. were more frequently diagnosed in elderly patients ( = 0.004). Multivariate logistic regression analysis showed that two clinical variables were significantly associated with CL caused by L. : lesion size ( = 0.002) and occurrence of lesion on the face ( = 0.005). Furthermore, the results of our survey highlighted the association of infection when travelling to endemic areas. The high number of endemic foci where patients with CL were infected with L. illustrated the tendency of this form to spread and generate epidemics, exposing young people to a greater degree to the disease. The epidemic status of CL caused by L. in Morocco and the increased movement of the population from rural to urban areas indicate a possible introduction of this species to urban areas.

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