Etude entomologique de cinq foyers de leishmaniose cutanée dans la province de Sidi Kacem au nord du Maroc

Miri, Hicham El; Roubal, M.; Himmi, Oumnia; Ouahabi, S.; Benhoussa, Abdelaziz; Faraj, Chafika

doi:10.1080/00379271.2013.808504

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…longicuspis strongly suspected as a vector of L. infantum [ 24 , 25 ]. The last entomological works carried out in Morocco confirm the presence of the species found in our studies [ 26 – 28 ].…”

Section: Discussionsupporting

confidence: 88%

Impact of Climatic Factors on the Seasonal Fluctuation of Leishmaniasis Vectors in Central Morocco (Meknes Prefecture)

Omari¹,

Chahlaoui²,

Talbi

et al. 2020

Canadian Journal of Infectious Diseases and Medical Microbiolog

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The impact of climate factors on the epidemiology of diseases in general and leishmaniasis in particular continues to be a subject of research and analysis. Changes in climatic parameters contribute to the creation of ecological conditions favorable to the multiplication of the vectors of certain diseases. With this in mind, this study presents an entomological survey conducted in Meknes prefecture and the study of the link between the abundance of sandflies, an indicator of the risk of leishmaniasis in a given area, and the climatic factors. Monthly trapping of this fauna was carried out during a year from March 2016 until April 2017 using adhesive traps. Climatic data from the region were used to determine the effect of climate on the distribution of sandflies. A total of 941 leishmaniasis vector specimens were captured. The dominant species is Ph. sergenti (73.32), followed by Ph. longicuspis (8.25%), then Ph. perniciosus (7.94%) and Ph. papatasi (6.31%). The sex ratio study showed that males are more abundant than females for all species. The seasonal fluctuation is bimodal with two peaks, the first in July and the second in September. The results show a positive correlation between temperature and abundance of sandflies (r = 0.99) and a negative correlation with humidity and precipitation with a correlation coefficient of r = −0.87 and r = −0.72. Indeed, the medium-term climatological forecasts are essential tools to develop a warning system for leishmaniasis.

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Section: Discussionsupporting

confidence: 88%

Impact of Climatic Factors on the Seasonal Fluctuation of Leishmaniasis Vectors in Central Morocco (Meknes Prefecture)

Omari¹,

Chahlaoui²,

Talbi

et al. 2020

Canadian Journal of Infectious Diseases and Medical Microbiolog

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“…Also, the study realized especially in Ain Chkef district, by Lahouiti et al in 2016 [21], proved the dominance of P. sergenti (27.17%) compared to P. longicuspis (13.69%). The same vectors were identified in the surrounding areas, namely Sidi Kacem and Sidi Yahiya Provinces [13,14]. Similarly, in Fez Prefecture, belonging to two semi-arid and subhumid bioclimatic areas, the molecular identification showed the coexistence of L. tropica and L. infantum: in Fez district belonging to the semi-arid area and within Sidi Harazem district belonging to the sub-humid area.…”

Section: Discussionsupporting

confidence: 52%

Model of Effective Control of Leishmaniasis in North Central Morocco and Updating the Mapping of the Circulating Species

Fellah

Hmamouch

Lalami

et al. 2020

Bull Soc Pathol Exot

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Leishmaniasis is among the most important emerging vector-borne protozoal disease in terms of disability adjusted life year (DALY'S). The main objectives of this study are, firstly to evaluate the epidemiological situation of Cutaneous Leishmaniasis (CL) from 2000 to 2015 in Moulay Yacoub Province and Fez Prefecture and secondly to analyze the impact of several factors (geographical and socio-economic factors) on the distribution of CL in these provinces. In addition, this study aims to identify the circulating species of Leishmania in order to justify the cause of the case maintenance and to prevent possible epidemics. The spatio-temporal evolution of CL from 2000 to 2015 in the study area revealed the endemic and epidemic character of the disease with a variation in the number of cases according to provinces, and districts. The sharp decrease of cases observed in the study area could be explained by the several control measures that concern the different actors of leishmaniasis. According to the statistical study, the presence of leishmaniasis is mainly related to population movement and environmental conditions. The results of the clinical identification of cutaneous leishmaniasis in the study area showed a diversity of clinical features with the presence of symptoms miming for L. tropica or L. infantum. This result was confirmed by the molecular study PCR-ITS1-RFLP.

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“…Ph. sergenti is very abundant in all the territory of Morocco [ 15 , 16 ]. But its wide distribution is localized in zones with arid and subhumid climate [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Entomological Investigations, Seasonal Fluctuations and Impact of Bioclimate Factors of Phlebotomines Sand Flies (Diptera: Psychodidae) of an Emerging Focus of Cutaneous Leishmaniasis in Aichoun, Central Morocco

Talbi

Lalami

Fadil

et al. 2020

Journal of Parasitology Research

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Leishmaniasis diseases are endemic in Morocco. An entomological survey was conducted in Aichoun locality for 1 year from September 2013 to August 2014. The objective of this study was to investigate the sand fly fauna, mainly the species composition and the monthly species prevalence in accordance with bioclimate factors. Sand flies were collected twice a month, using sticky traps and CDC light traps. During a one-year study, 4472 specimens of sand fly were caught (72.56% male/22.44% female) that were composed of seven species divided into two genera: Phlebotomus (99.46%) and Sergentomyia (0.53%). Ph. sergenti was the most prevalent species (46.64%), followed by Ph. perniciosus (38.19%), Ph. longicuspis (9.32%), Ph. papatasi (5.23%), and Ph. ariasi (0.06%). The genus Sergentomyia was even less frequent. The population dynamics showed a bimodal trend with two peaks: the first one in October (12.03% of specimens) and the second in June (27.92% of specimens). The study of the effects of climatic factors in the study area showed a link between the dynamics of sand flies and the variation of these parameters (temperature and relative humidity). During the period between November and March, the sand flies were absent. The highest prevalence of sand flies was recorded in June when the temperature and relative humidity values reached, respectively, 25.8°C and 42%. The minimum number of specimens was collected in September with an average temperature of 23.19°C and relative humidity of 57.4%. Statistical analysis with principal component analysis has shown a strong positive correlation between temperature parameters and the seasonal distribution of sand flies. The climatic factor of relative humidity has been judged of being negatively correlated. The wind speed does not have any impact on the relative abundance of all species. Within this context, the results will be useful for the development of a monitoring program to better manage the operations and evaluate their effectiveness.

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Etude entomologique de cinq foyers de leishmaniose cutanée dans la province de Sidi Kacem au nord du Maroc

Cited by 9 publications

References 8 publications

Impact of Climatic Factors on the Seasonal Fluctuation of Leishmaniasis Vectors in Central Morocco (Meknes Prefecture)

Impact of Climatic Factors on the Seasonal Fluctuation of Leishmaniasis Vectors in Central Morocco (Meknes Prefecture)

Model of Effective Control of Leishmaniasis in North Central Morocco and Updating the Mapping of the Circulating Species

Entomological Investigations, Seasonal Fluctuations and Impact of Bioclimate Factors of Phlebotomines Sand Flies (Diptera: Psychodidae) of an Emerging Focus of Cutaneous Leishmaniasis in Aichoun, Central Morocco

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