Occurrence and molecular characterization of Giardia duodenalis in lambs in Djelfa, the central steppe of Algeria

Benhassine, S.; Baroudi, Djamel; Hakem, Ahcène; Thomas, Myriam; Laatamna, AbdElkarim; Belkessa, Salem; Feng, Yaoyu; Roellig, Dawn M.; Chen, Xiaohua; Adjou, Karim; Xiao, Lihua

doi:10.1007/s00436-020-06808-y

Cited by 8 publications

(12 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, nomadic and pastoral populations live close to their animals and this close contact increases the risk of zoonotic transmission. Livestock, have often been implicated as a major source of environmental contamination and potential reservoirs for zoonotic infection [ 30 – 32 ]. In Algeria G. intestinalis and C. parvum have been reported in domesticated animal species [ 30 – 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…Livestock, have often been implicated as a major source of environmental contamination and potential reservoirs for zoonotic infection [ 30 – 32 ]. In Algeria G. intestinalis and C. parvum have been reported in domesticated animal species [ 30 – 32 ]. These parasites are potentially zoonotic pathogens and close contact with animals is believed to be the major risk factor for human infections.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence and risk factors of intestinal protozoan infection among symptomatic and asymptomatic populations in rural and urban areas of southern Algeria

et al. 2021

Self Cite

View full text Add to dashboard Cite

Background Intestinal parasitic infections are amongst the most common infections worldwide and have been identified as one of the most significant causes of morbidity and mortality among disadvantaged populations. This comparative cross-sectional study was conducted to assess the prevalence of intestinal protozoan infections and to identify the significant risk factors associated with intestinal parasitic infections in Laghouat province, Southern Algeria. Methods A comparative cross-sectional study was conducted, involving 623 symptomatic and 1654 asymptomatic subjects. Structured questionnaires were used to identify environmental, socio demographic and behavioral factors. Stool specimens were collected and examined using direct wet mount, formalin-ether concentration, xenic in vitro culture and staining methods. Results A highly significant difference of prevalence was found between symptomatic (82.3%) and asymptomatic subjects (14.9%), with the majority attributable to protozoan infection. The most common species in the symptomatic subjects were Blastocystis spp. (43.8%), E. histolytica/dispar (25.4%) and Giardia intestinalis (14.6%) and more rarely Enterobius vermicularis (02.1%), Teania spp. (0.6%) and Trichuris trichiura (0.2%), while in asymptomatic population Blastocystis spp. (8%), Entamoeba coli (3.3%) and Entamoeba histolytica/dispar (2.5%) were the most common parasites detected with no case of helminth infection. Multivariate log-linear analysis showed that contact with animals was the main risk factor for transmission of these protozoa in both populations. Furthermore, living in rural areas was significantly associated with combined protozoan infection in the asymptomatic population, whereas, in the symptomatic population an increasing trend of protozoan infection was detected in the hot season. In addition, Blastocystis spp. and G. intestinalis infection were found to be associated with host sex and contact with animals across the study period. Conclusions Based on these results, several strategies are recommended in order to effectively reduce these infections including good animal husbandry practices, health education focused on good personal hygiene practices and adequate sanitation.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Prevalence and risk factors of intestinal protozoan infection among symptomatic and asymptomatic populations in rural and urban areas of southern Algeria

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Livestock, have often been implicated as a major source of environmental contamination and potential reservoirs for zoonotic infection [21,22]. In Algeria G. intestinalis and C. parvum have been reported in domesticated animal species [21][22][23]. These parasites are potentially zoonotic pathogens and close contact with animals is believed to be the major risk factor for human infections.…”

Section: Discussionmentioning

confidence: 99%

“…These transmission stages of parasites have also been recorded in faecal samples of exposed populations that use wastewater in agriculture in rural areas of Morocco [16]. No major waterborne or foodborne outbreaks of giardiasis, amoebiasis or cryptosporidiosis have been reported so far in Algeria, but the presence of these protozoan genera has been recorded in epidemiological studies of human populations [17][18][19][20] and in domestic animals highlighting the high risk of zoonotic transmission [21][22][23].…”

Section: Introductionmentioning

confidence: 98%

Prevalence of Intestinal Parasitism and Associated Risk Factors in Rural and Urban Areas of Southern Algeria: a Four-year Community Based Study

Sebaa

Behnke

Baroudi

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Background: Intestinal parasitic infections are amongst the most common infections worldwide and have been identified as one of the most significant causes of morbidity and mortality among disadvantaged populations. This community based study was conducted to assess the magnitude and pattern of intestinal parasitism and to identify the key risk factors associated with intestinal parasitic infections in Laghouat province, south Algeria.Methods: Stool samples were collected from 2277 symptomatic and asymptomatic patients aged 1-89 years old. Structured questionnaire were used to identify environmental, socio demographic and behavioral factors. Stool specimens were collected and examined for intestinal parasitic infection. Results: More than 33% of participants were found to be infected for at least one protozoan and/or helminth parasite. Of these, the most common parasites were Blastocystis spp. (17.79%), followed by Entamoeba histolytica/dispar (8.78%), Giardia intestinalis (4.22%), Entamoeba coli (4.08%) and more rarely Endolimax nana, Cryptosporidium spp, Trichomonas intestinalis, Enterobius vermicularis, Taenia spp., and a single case of Trichuris trichiura. Multivariate analysis revealed significant associations between prevalence and species richness of combined protozoan parasites and contact with animal, living in rural areas and relying primarily on tap water, particularly in young individuals. Analysis of temporal consistency showed a high rate of infection in rural locations in the spring of 2018 and a firm relationship between school children and tap water was also detected. Conclusions: The high prevalence of intestinal parasitic infections among the Laghouat population, with identification of several risk factors indicates that parasitic infections are important public health problems. Therefore, several strategies are recommended in order to effectively reduce these infections including good animal husbandry practices, health education focused on good personal hygiene practices especially for school children, availability of safe drinking water and adequate sanitation.

show abstract

“…These studies revealed a high prevalence of G. duodenalis infection, with significant genetic polymorphism observed among isolates of both assemblages A (AI, mostly AII and novels), and B (BIII, BIV, BS1, BS6, and novels). Furthermore, the studies highlighted that assemblage B isolates exhibited allelic sequence heterozygosity or mixed infection, unlike assemblage A isolates (Lalle et al, 2009;Benhassine et al, 2020;Rebih et al, 2020).…”

Section: G Duodenalis In Humansmentioning

confidence: 99%

<em>Giardia duodenalis</em> en Algérie : une revue dans le cadre du concept Une seule santé

Thomas,

Polack,

Mammeri

2024

Rev. Elev. Med. Vet. Pays Trop.

Self Cite

View full text Add to dashboard Cite

Giardia duodenalis est un parasite protozoaire qui infecte principalement l’intestin grêle de divers mammifères, y compris les humains. Il s’agit d’un complexe d’espèces composé de plusieurs génotypes connus sous le nom d’assemblages A à H. Les assemblages A et B sont considérés comme les plus zoonotiques, présentant ainsi un risque significatif pour la santé humaine, tandis que les assemblages C à H se trouvent chez les animaux de compagnie, le bétail, les rongeurs et les vertébrés marins. La giardiose, due à G. duodenalis, est l’infection parasitaire intestinale la plus courante dans le monde. En Algérie, il existe des données limitées sur l’occurrence et les caractéristiques génétiques de G. duodenalis, entravant la compréhension de son épidémiologie, de son impact et de son potentiel zoonotique. Cette revue se concentre sur la recherche menée en Algérie, couvrant les humains, les animaux et l’environnement, en mettant l’accent sur l’approche «Une seule santé». Les bases de données PubMed et ResearchGate ont été utilisées pour accéder aux publications pertinentes sur la présence de G. duodenalis chez les humains, les animaux ou dans l’environnement de janvier 2000 à avril 2023. Dix-sept publications ont été identifiées, parmi lesquelles seuls quatre articles utilisaient des outils moléculaires pour identifier G. duodenalis. Les résultats ont révélé la présence de G. duodenalis chez les humains, les animaux d’élevage (bovins, ovins et chameaux) et dans l’environnement (échantillons d’eau et de sol). La prévalence et la diversité génétique des isolats de G. duodenalis variaient selon les régions et les groupes d’âge, aussi bien chez les humains que chez les animaux. L’assemblage A était couramment trouvé chez les humains et les animaux, indiquant une transmission zoonotique potentielle. Des études supplémentaires sont nécessaires pour comprendre de manière approfondie la dynamique de transmission de G. duodenalis, son potentiel zoonotique et les implications pour la santé publique et le bien-être animal en Algérie. Aborder G. duodenalis nécessite des efforts collaboratifs dans le cadre du concept «Une seule santé», impliquant des vétérinaires, des biologistes, des écologistes et des professionnels de la santé. La mise en oeuvre de stratégies de prévention et de contrôle adaptées à des régions spécifiques et l'amélioration des pratiques d’hygiène et d’élevage sont essentielles pour réduire la charge de la giardiose tant chez les humains que chez les animaux.

show abstract

Occurrence and molecular characterization of Giardia duodenalis in lambs in Djelfa, the central steppe of Algeria

Cited by 8 publications

References 41 publications

Prevalence and risk factors of intestinal protozoan infection among symptomatic and asymptomatic populations in rural and urban areas of southern Algeria

Prevalence and risk factors of intestinal protozoan infection among symptomatic and asymptomatic populations in rural and urban areas of southern Algeria

Prevalence of Intestinal Parasitism and Associated Risk Factors in Rural and Urban Areas of Southern Algeria: a Four-year Community Based Study

<em>Giardia duodenalis</em> en Algérie : une revue dans le cadre du concept Une seule santé

Contact Info

Product

Resources

About