Rodents of Senegal and their role as intermediate hosts of <i>Hydatigera</i> spp. (Cestoda: Taeniidae)

Catalano, Stefano; Bâ, Khalilou; Diouf, Nicolas D.; Léger, Elsa; Verocai, Guilherme G.; Webster, Joanne P.

doi:10.1017/s0031182018001427

Cited by 9 publications

(8 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The H. kamiyai isolates were in a single clade, and the results confirmed that H. kamiyai is genetically distant from H. taeniaeformis s.s. Based on nucleotide sequence comparisons, Catalano et al found that a H. taeniaeformis isolate from a Nile rat (Arvicanthis niloticus) in Senegal showed identity to what was described as H. taeniaeformis s.s., a lineage that might have originated in Southeast Asia and rapidly invaded Australia, the Americas, Europe and Africa, where it has been identified in Ethiopia and South Africa in Rattus spp. (Catalano et al, 2019). Lavikainen et al (2016) has also speculated that H. taeniaeformis probably originated in Asia and has spread worldwide, given its linkage to the Rattini tribe.…”

Section: Resultsmentioning

confidence: 99%

“…Some members of the genus Taenia are responsible for taeniasis and/or cysticercosis in humans (Sharma et al, 2016). The resurrection of the genus Hydatigera was proposed in a recent revision of the family Taeniidae; Hydatigera consists of four valid species, Hydatigera taeniaeformis sensu stricto (s.s.), Hydatigera krepkogorski, Hydatigera parva, and Hydatigera kamiyai (Nakao et al, 2013a;Nakao et al, 2013b;Catalano et al, 2019). H. taeniaeformis is found in the small intestine of cats and other felids, which are the definitive hosts.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence and Genetic Characterization of Two Mitochondrial Gene Sequences of Strobilocercus Fasciolaris in the Livers of Brown Rats (Rattus norvegicus) in Heilongjiang Province in Northeastern China

Zhao

Zhou

et al. 2020

Front. Cell. Infect. Microbiol.

View full text Add to dashboard Cite

Rodents constitute the largest and most successful group of mammals worldwide. Brown rats (Rattus norvegicus) are one of the most common rodent species, and they serve as intermediate hosts of Hydatigera taeniaeformis. Although there have been a few studies reporting on the presence of the larval form of H. taeniaeformis (strobilocercus fasciolaris) in brown rats worldwide, little information is available on the genetic characterization of this parasite, with no molecular data from China. Therefore, from April 2014 to March 2016, this study was carried out to understand the prevalence and genetic characters of strobilocercus fasciolaris in brown rats captured in Heilongjiang Province in northeastern China. The livers of brown rats were collected and examined for the presence of cysts. Each cyst was identified based on morphological observation: the larvae with the naked eye and the scolexes under a microscope. The results were confirmed by polymerase chain reaction (PCR) and sequencing of the cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 4 (nad4) genes. At the investigated sites, 11.8% (13/110) of the brown rats were infected with strobilocercus fasciolaris. Based on sequence analysis, there were 10 and six haplotypes regarding the cox1 and the nad4 loci, with 24 and 42 polymorphic sites, respectively (degree of intraspecific variation: 0.3%–4.4% and 0.6%–4.7%, respectively). Twelve nucleotide sequences (six of the 10 at the cox1 locus and all six at the nad4 locus) have not previously been described. Base differences in three of the six novel cox1 gene sequences and five of the six novel nad4 gene sequences caused amino acid changes. Phylogenetic analyses of the cox1 and nad4 gene sequences based on neighbor-joining and Bayesian inference trees indicated that all the strobilocercus fasciolaris isolates belonged to Hydatigera taeniaeformis sensu stricto (s.s.). This is the first report on the genetic characterization of strobilocercus fasciolaris in brown rats in China. The findings of novel cox1 and nad4 nucleotide and amino acid sequences may reflect the region-specific genetic characterization of the parasite. The data will be useful to explore the biological and epidemiological significance of the intraspecific variation within H. taeniaeformis s.s.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prevalence and Genetic Characterization of Two Mitochondrial Gene Sequences of Strobilocercus Fasciolaris in the Livers of Brown Rats (Rattus norvegicus) in Heilongjiang Province in Northeastern China

Zhao

Zhou

et al. 2020

Front. Cell. Infect. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Each cyst contained one larval stage, which measured from 5 to 130 mm (Figure 1a to c). The cestode specimens showed the diagnostic characteristics of the genus Hydatigera (i. e., large rostellar hooks and metacestodes as strobilocercus with prominent segmented strobilae; Lavikainen et al 2016;Catalano et al 2019). The general characteristics of all strobilocerci found, such as scolex with four suckers of 223 µm length by 120 µm wide; rostellum with double alternative crowns of 17 to 20 hooks each; longer hooks 368 to 409 µm in length and smaller hooks 224 to 246 µm in length (Figures 2, 3), were in accordance with descriptions of H. taeniaeformis given by Dobrovolny and Harbaugh (1934) 1936; Mello et al 2018).…”

Section: Introductionmentioning

confidence: 98%

Hydatigera taeniaeformis (Cestoda: Taeniidae) in the Yucatán squirrel Sciurus yucatanensis (Rodentia: Sciuridae), México

Panti–May

Hernández-Betancourt

Garcı́a-Prieto

2019

Therya

View full text Add to dashboard Cite

The present study reports for the first time the occurrence of Hydatigera taeniaeformis (Cestoda: Taeniidae) in the Yucatán squirrel Sciurus yucatanensis (Rodentia: Sciuridae) in Yucatán, México. Thirty larval stages of cestodes were collected in the liver and mesenteries of an adult male squirrel. This study increases to 11 the total number of helminth taxa known from squirrels in México.El presente estudio reporta por primera vez la presencia de Hydatigera taeniaeformis (Cestoda: Taeniidae) en la ardilla de Yucatán Sciurus yucatanensis (Rodentia: Sciuridae) en Yucatán, México. Treinta estados larvales de cestodos fueron colectados del hígado y mesenterios de una ardilla macho adulta. Este estudio incrementa a 11 el número total de taxa de helmintos conocidas en ardillas en México.

show abstract

“…Natural infections of S. mansoni, S. haematobium, and also notably S. haematobium with S. bovis hybrids, have been observed in some non-human animals such as primates (e.g., baboons), rodents, and pigs [51][52][53][54][55][56][57]. Further, there is also evidence that human S. mansoni is maintained in non-human primates, e.g., in East Africa [57], that shared phylogenetic genotypes are matched, indicative of shared transmission between humans and rodents in West Africa [58].…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of <em>Schistosoma</em> Infection in Non-Human Animal Hosts: A Systematic Review and Meta-Analysis

Liang¹,

Ponpetch²,

Zhou³

et al. 2021

Preprint

View full text Add to dashboard Cite

Background Reliable and field-applicable diagnosis of schistosome infections in non-human animals is important for surveillance, control, and verification of interruption of human schistosomiasis transmission. This study aimed to summarize uses of available diagnostic techniques through a systematic review and meta-analysis. Methods and principal findings We systematically searched the literature and reports comparing two or more diagnostic tests in non-human animals for schistosome infection. Out of 4,909 articles and reports screened, 18 met our inclusion criteria, four of which were considered in the meta-analysis. A total of 14 techniques (parasitologic, immunologic, and molecular) and nine types of non-human animals were involved in the studies. Notably, four studies compared parasitologic tests (miracidium hatching test (MHT), Kato-Katz (KK), the Danish Bilharziasis Laboratory technique (DBL), and formalin-ethyl acetate sedimentation-digestion (FED-SD)) with quantitative polymerase chain reaction (qPCR), and sensitivity estimates (using qPCR as the reference) were extracted and included in the meta-analyses, showing significant heterogeneity across studies and animals hosts. The pooled estimate of sensitivity was 0.21 (95% confidence interval (CI): 0.03 – 0.48) with FED-SD showing highest sensitivity (0.89, 95% CI: 0.65 – 1.00). Conclusions and significance Our findings suggest that the parasitologic technique FEA-SD and the molecular technique, qPCR, are the most promising field-applicable techniques for schistosome diagnosis in non-human animal hosts. Future studies are needed for validation and standardization of the techniques for real-world field applications.

show abstract

Rodents of Senegal and their role as intermediate hosts of Hydatigera spp. (Cestoda: Taeniidae)

Cited by 9 publications

References 39 publications

Prevalence and Genetic Characterization of Two Mitochondrial Gene Sequences of Strobilocercus Fasciolaris in the Livers of Brown Rats (Rattus norvegicus) in Heilongjiang Province in Northeastern China

Prevalence and Genetic Characterization of Two Mitochondrial Gene Sequences of Strobilocercus Fasciolaris in the Livers of Brown Rats (Rattus norvegicus) in Heilongjiang Province in Northeastern China

Hydatigera taeniaeformis (Cestoda: Taeniidae) in the Yucatán squirrel Sciurus yucatanensis (Rodentia: Sciuridae), México

Diagnosis of <em>Schistosoma</em> Infection in Non-Human Animal Hosts: A Systematic Review and Meta-Analysis

Contact Info

Product

Resources

About