Intestinal protozoan parasites with zoonotic potential in birds

Marietto-Gonçalves, Guilherme Augusto; Fernandes, Thaís; Silva, R. J.; Lopes, Raimundo Souza; Filho, Raphael Lúcio Andreatti

doi:10.1007/s00436-008-1125-y

Cited by 15 publications

(12 citation statements)

References 4 publications

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“…Omnivorous birds are more susceptible to gastrointestinal parasitism because of the variability of the diet, and arthropods can be intermediate hosts or vectors of parasites in insectivorous birds (33) . As reported previously (34) , none of the birds we found infested with gastrointestinal parasites presented external signs of disease.…”

Section: Resultssupporting

confidence: 82%

Endoparasites in Birds of Guaribas Biological Reserve, Atlantic Forest, Paraíba State, Brazil

et al. 2018

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This paper describes the findings on endoparasites in Atlantic forest birds at Guaribas Biological Reserve, Paraíba State, Northeast of Brazil. We captured 151 birds with mist nets in ten field expeditions between July 2010 and June 2011 and studied bird endoparasites through blood and excreta samples. Blood samples were collected from 131 birds and excreta were collected from 48 birds. In blood smears, only Haemoproteus columbae was detected in three Columbiformes (2.29%) of the species Columbina talpacoti. Fecal samples were collected from 48 birds, and eggs of nematodes and oocysts of coccidian were detected in 6.25% of the samples: Spirurida (Nematoda) in Lanio cristatus (Thraupidae); Strongyloides sp. (Nematoda) in Momotus momota (Momotidae) and Isospora sp. (Protozoa, Eimeriidae) in Neopelma pallescens (Pipridae). There is limited information about the parasites of wild birds in the remaining fragments of Atlantic forest in Northeast of Brazil; however, such knowledge can help understanding these host-parasite interactions.

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Section: Resultssupporting

confidence: 82%

Endoparasites in Birds of Guaribas Biological Reserve, Atlantic Forest, Paraíba State, Brazil

et al. 2018

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“…Valença-Barbosa et al [36] Marietto-Gonçalves et al [79] 0. 21 rates, at 39.0% (95% CI: 21.0-56.0%; weight 47.31%), followed by birds at 18.0% (95% CI: 10.0-27.0%; weight 39.31%).…”

Section: Studymentioning

confidence: 99%

Prevalence of Blastocystis sp. infection in several hosts in Brazil: a systematic review and meta-analysis

et al. 2020

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Background: Blastocystis sp. affects a wide variety of animals and is the most common protozoan in human fecal samples with potential pandemic distribution. In the present study, a systematic review and meta-analysis were conducted to determine the prevalence and distribution of Blastocystis sp. in different classes of hosts in Brazil. Methods: Studies that analyzed hosts of various classes, including humans, domestic animals, wild animals or captive animals, were considered. The pooled prevalence of Blastocystis sp. infection was estimated by random effects models. Results: For humans, similar prevalence rates were found for males (31.0%, 95% CI: 17.0-45.0%; weight 10%) and females (28.0%, 95% CI: 16.0-41.0%; weight 10%); the state of Mato Grosso do Sul showed the highest prevalence, with 41.0% positivity (95% CI: 36.0-46.0%; weight 2.9%). The prevalence among immunocompromised patients was 5.0% (95% CI: 3.0-7.0%; weight 10%), and the most common cause of immunosuppression was hemodialysis, with 23.0% (95% CI: 17.0-29.0%; weight 12.4%). Among classifications according to interaction with humans, wild and domestic animals presented values of 19.0% (95% CI: 7.0-31.0%; weight 42.6%) and 17.0% (95% CI: 13.0-21.0%; weight 29.6%), respectively. Among these animals, mammals (39.0%, 95% CI: 21.0-56.0%; weight 47.3%) and birds (18.0%, 95% CI: 10.0-27.0%; weight 39.3%) exhibited the highest prevalence. Phylogenetic analysis of Blastocystis sp. revealed greater genetic diversity for clades of subtypes (STs) ST1, ST2 and ST3. Conclusions: The overall prevalence of Blastocystis sp. in the Brazilian human population was 24%, which reflects the reality in the South, Southeast and Midwest regions, where prevalence rates of up to 40% were found. Among animals, mammals and birds exhibited the highest prevalence.

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“…Some bird parasites may have a zoonotic potential, and direct or indirect contact with infected specimens can cause human diseases (Corrêa and Corrêa 1983). The probability of zoonotic disease transmission is influenced by many factors, such as time of infection, latent period, stability of the agent when exposed to the environment, population density, animal handling, virulence, and route of infection (Corrêa and Corrêa 1983;Marietto-Gonçalves et al 2008).…”

Section: Introductionmentioning

confidence: 99%

First report of birds infection by intestinal parasites in Khorramabad, west Iran

et al. 2014

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Parasitic infections in birds are omnipresent, even when they occur in low amounts, may result in subclinical diseases. There aren't any studies, based on Iranian data, investigating the prevalence of intestinal parasitic infections in some birds' species. We conducted a cross-sectional study between December 2011 and December 2012. The fecal samples were taken from 451 birds including hen, turkey, sparrow, pigeon and decorative birds. The samples screened for intestinal parasitic infections using direct smear, formalin-ether concentration technique, modified Ziehl-Neelsen staining, Culture in RPMI 1640 medium, sporulation with potassium dichromate and Trichrome and Giemsa staining. Out of 451 birds' species, 157 (34.8 %), were infected with one or more type of intestinal parasites. We identified two nematode, two cestoda species and five protozoan parasites species. No trematodes were found in the samples studied. The parasites identified among birds involved Raillietina spp. (4.2 %) and Eimeria spp. (7.1 %) were the most common helminthes and protozoa respectively. From total of birds study, 12 (2.7 %) and 6 (1.3 %) have two and three mixed infections respectively. Intestinal parasitic infections are common in birds in west Iran. The future studies are needed in order to determine to which extent the infections influence mortality and performance of the birds.

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Intestinal protozoan parasites with zoonotic potential in birds

Cited by 15 publications

References 4 publications

Endoparasites in Birds of Guaribas Biological Reserve, Atlantic Forest, Paraíba State, Brazil

Endoparasites in Birds of Guaribas Biological Reserve, Atlantic Forest, Paraíba State, Brazil

Prevalence of Blastocystis sp. infection in several hosts in Brazil: a systematic review and meta-analysis

First report of birds infection by intestinal parasites in Khorramabad, west Iran

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