Cryptosporidium species in non-human animal species in Latin America: Systematic review and meta-analysis

Nakashima, Flávia Terumi; Fonseca, Ana Beatriz Monteiro; Coelho, Luiz Fernando; Barbosa, Alynne da Silva; Bastos, Otílio Machado Pereira; Uchôa, Cláudia Maria Antunes

doi:10.1016/j.vprsr.2022.100690

Cited by 2 publications

(2 citation statements)

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“…infections seen in this survey. Studies in domestic animals have reported a prevalence ranging from 6.7% to 41.6% [ 76 , 81 ], a recent study has reported a pool prevalence of 18% in Latin America [ 82 ], 20.3% in pets and 19.9% in livestock, the latter being considered so far as the main parasite reservoir [ 82 ]. In Colombia, the Cryptosporidium prevalence in livestock has been reported to be from 13 to 26.6% [ 83 , 84 ].…”

Section: Discussionmentioning

confidence: 99%

Molecular diagnosis of intestinal protozoa in young adults and their pets in Colombia, South America

Potes-Morales

Crespo-Ortiz

2023

PLoS ONE

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Intestinal parasitic infections have been considered a relevant public health problem due to the increased incidence worldwide. In developing countries, diarrhea and gastrointestinal symptoms cause impaired work capacity in adults and delayed rate growth in children. Enteric infections of unknown etiology can often lead to misdiagnosis, increased transmission, and morbidity. The aim of this study was to determine the prevalence of intestinal parasites in a young adult population and their pets. Stool samples from 139 university students and 44 companion animals were subjected to microscopy diagnosis using wet mounts, concentration by zinc sulphate flotation and staining techniques (Kinyoun and trichrome stain). Molecular diagnosis of protozoa was also performed by conventional PCR. The mean age was 24 years, 54% individuals were female, 46% were men, and 66% had at least one pet. The overall prevalence for at least one parasite was 74.8% and the rate of polyparasitism was 37.5%. Eighty-three patients (59.7%) were positive for Blastocystis spp., followed by Cryptosporidium spp. 24.5%, Endolimax nana 13.6%, Entamoeba dispar/E. moshkovskii 7.8% and Giardia intestinalis 1.4%. Molecular diagnosis substantially improved Cryptosporidium spp. and Blastocystis spp. detection and allowed to distinguish E. histolytica from commensals in the Entamoeba complex. Student’s pets were also examined for parasitism. Samples from 27 dogs, 15 cats, one rabbit and one hen were analyzed, and parasites were detected in 30 (68.2%) as follows: Cryptosporidium spp. (24) Giardia spp. (4), hookworm (3), Endolimax nana (2) and Toxoplasma gondii (1). Overall, university students showed high prevalence of parasitism and polyparasitism suggesting exposure to parasite infected animals and contaminated environments. Cryptosporidium spp. was the predominant pathogen in human and domestic animals, and it was only detected by PCR, pointing out the need for sensitive tests in diagnosis and surveillance. Control strategies to prevent the effects of parasitic infections in young population should consider pets as reservoirs and transmission source.

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Section: Discussionmentioning

confidence: 99%

Molecular diagnosis of intestinal protozoa in young adults and their pets in Colombia, South America

Potes-Morales

Crespo-Ortiz

2023

PLoS ONE

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“…Cryptosporidia are monoxenous parasites and complete their development within a single host [ 49 ]. Forty species have been described, virtually all from vertebrates [ 75 ]. The infection starts when a host ingests an oocyst that releases sporozoites within the digestive tract.…”

Section: Protist Parasites Including Microsporidia Within the Eu Rear...mentioning

confidence: 99%

Protists in the Insect Rearing Industry: Benign Passengers or Potential Risk?

Bessette

Williams

2022

Insects

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As the insects for food and feed industry grows, a new understanding of the industrially reared insect microbiome is needed to better comprehend the role that it plays in both maintaining insect health and generating disease. While many microbiome projects focus on bacteria, fungi or viruses, protists (including microsporidia) can also make up an important part of these assemblages. Past experiences with intensive invertebrate rearing indicate that these parasites, whilst often benign, can rapidly sweep through populations, causing extensive damage. Here, we review the diversity of microsporidia and protist species that are found in reared insect hosts and describe the current understanding of their host spectra, life cycles and the nature of their interactions with hosts. Major entomopathogenic parasite groups with the potential to infect insects currently being reared for food and feed include the Amoebozoa, Apicomplexa, Ciliates, Chlorophyta, Euglenozoa, Ichtyosporea and Microsporidia. However, key gaps exist in the understanding of how many of these entomopathogens affect host biology. In addition, for many of them, there are very limited or even no molecular data, preventing the implementation of molecular detection methods. There is now a pressing need to develop and use novel molecular tools, coupled with standard molecular diagnostic methods, to help unlock their biology and predict the effects of these poorly studied protist parasites in intensive insect rearing systems.

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Cryptosporidium species in non-human animal species in Latin America: Systematic review and meta-analysis

Cited by 2 publications

References 72 publications

Molecular diagnosis of intestinal protozoa in young adults and their pets in Colombia, South America

Molecular diagnosis of intestinal protozoa in young adults and their pets in Colombia, South America

Protists in the Insect Rearing Industry: Benign Passengers or Potential Risk?

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