Elevada porcentagem de blastocistose em escolares de São Paulo, SP

Neto, Vicente Amato; Alarcón, Ruth Semira Rodríguez; Gakiya, Érika; Ferreira, Cláudio Santos; Bezerra, Rita Cristina; Santos, Alexsander Gonzaga dos

doi:10.1590/s0037-86822004000400013

Cited by 11 publications

(1 citation statement)

References 7 publications

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“…Rebolla et al [51] Amâncio et al [57] Amato-Neto et al [72] Cimerman et al [74] Guimarães et al [77] Guimarães et al [75] Subtotal (I^2 = 99.17%, p = 0.00)…”

Section: Rio De Janeiromentioning

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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“…Rebolla et al [51] Amâncio et al [57] Amato-Neto et al [72] Cimerman et al [74] Guimarães et al [77] Guimarães et al [75] Subtotal (I^2 = 99.17%, p = 0.00)…”

Section: Rio De Janeiromentioning

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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High prevalence of enteroparasitosis in urban slums of Belo Horizonte-Brazil. Presence of enteroparasites as a risk factor in the family group

Gil¹,

Busatti²,

Cruz³

et al. 2013

Pathogens and Global Health

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The present study evaluates the prevalence of enteroparasitosis in the urban slums of Belo Horizonte, Brazil and the risk of transmitting enteroparasites to the family members of infected individuals. Stool samples were collected and examined at clinical laboratories near each slum. Individuals were identified and classified as positive for parasitosis (IP z ), and individuals with negative stool tests were classified as negative for parasitosis (IP 2 ) and enrolled as control patients. We collected samples from 594 patients, of which 20.2% and 79.8% were classified as IP z and IP 2 , respectively. In addition, 744 family members (FIPs) effectively participated in the study by providing fecal samples. In total, 1338 participants were evaluated. Of these, 34.6% were tested positive for parasitosis. Blastocystis was the most prevalent parasite, infecting 22.4% of individuals. Among FIPs, the overall prevalence was 46.1%. Of these, 50.6% and 44.7% were classified as FIPs z and FIPs 2 , respectively. These results showed that IP z did not impact the prevalence of infection within the studied communities, not constituting index cases of specific risk behaviors, suggesting that, in fact, these communities are exposed to similar oral-fecal routes of contamination.

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Blastocystis hominis and other intestinal parasites in a community of Pitanga City, Paraná State, Brazil

Nascimento

Moitinho

2005

Rev. Inst. Med. trop. S. Paulo

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SUMMARYThe objective was to estimate the prevalence of Blastocystis hominis, to evaluate the effectiveness of different techniques for its diagnosis as well as to estimate the prevalence of other intestinal parasites in the community of Campo Verde, a district of Pitanga. The work was carried out from August to October 2004. Samples of feces from children and adults were collected and submitted to the techniques of direct wet mount, flotation in zinc sulphate solution, tube sedimentation, sedimentation in formalinether and staining by Kinyoun and iron hematoxylin methods. From 181 studied individuals, 128 (70.7%) showed protozoa and/or helminths in stool samples. The most prevalent species were Endolimax nana (33.7%); B. hominis (26.5%); Giardia lamblia (18.2%); Entamoeba coli (17.1%); Ascaris lumbricoides (16.6%); Iodamoeba bütschlii (9.4%); and ancylostomatidae (7.7%). B. hominis was only identified by the techniques of direct wet mount, sedimentation in formalin-ether and staining by iron hematoxylin, though the latter was less sensitive than the other methods. The high frequency of B. hominis demonstrated by this study indicates the need to include laboratory techniques that enable identification of the parasite on a routine basis.

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Elevada porcentagem de blastocistose em escolares de São Paulo, SP

Cited by 11 publications

References 7 publications

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

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

High prevalence of enteroparasitosis in urban slums of Belo Horizonte-Brazil. Presence of enteroparasites as a risk factor in the family group

Blastocystis hominis and other intestinal parasites in a community of Pitanga City, Paraná State, Brazil

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