Soil contamination by Ancylostoma spp. and Toxocara spp. eggs in elementary school playgrounds in the extreme south of Brazil

Mello, Cátia Cilene Santos de; Nizoli, Leandro Quintana; Ferraz, Alexsander; Chagas, Bruno Cabral; Azario, William James Domingues; Motta, Sara Patron da; Villela, Marcos Marreiro

doi:10.1590/s1984-29612022003

Cited by 3 publications

(4 citation statements)

References 19 publications

(11 reference statements)

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“…This result was slightly different from a previous report where contamination was detected in 12.0% of the soil samples collected from schools in Sakon Nakhon Province [6] in the northeastern region and in 18.3% of the soil samples in Nakhon Si Thammarat Province [7] in the southern region. Our results revealed higher contamination rates than those in Iran (13.0%) [18], Sri Lanka (12.0%) [19], Poland (1.6%) [20], and Brazil (0.5%-8.3%) [12,21], but lower than those reported in Iran (18.0%-47.5%) [9,22,23], Malaysia (24%) [2], Poland (20.7%) [17], Russia (23.3%) [24], Brazil (27.3%-38.4%) [25,26], Greece (17.1%) [27], Peninsula (26.6%) [28], Portugal (63.2%) [29], Serbia (22.0%-26.0%) [30], Turkey (19.4%) [31], and Germany (23.2%) [32]. Toxocara spp.…”

Section: Discussionmentioning

confidence: 99%

Environmental soil contamination with zoonotic soil-transmitted helminths in the temple grounds of Chachoengsao Province, Thailand

Dokmaikaw

Suntaravitun

2023

Int J One Health

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Background and Aim: Soil-transmitted helminth infections are a serious public health problem. The soil is an important reservoir for several helminth species. This study aimed to estimate the prevalence of soil contamination with zoonotic soil-transmitted helminths. Materials and Methods: Soil samples were collected on the grounds of 19 temples in Ratchasan and Bang Khla districts, Chachoengsao Province, Thailand, between June 2021 and February 2022. A total of 190 soil samples were collected from ten different areas on the grounds of each temple, of which 31 (16.3%) were contaminated. The samples were analyzed by a centrifugal flotation technique using a saturated sodium nitrate solution. Results: Six genera of helminths were recovered from the soil samples, of which five genera were identified as helminth eggs and two genera were identified as helminth larvae. The prevalence of soil contamination with helminth eggs was as follows: Toxocara spp. 15.8% (30/190), hookworm/strongylid 12.1% (23/190), Trichuris spp. 6.8% (13/190), Taenia spp. 2.1% (4/190), Ascaris spp. 1.6% (3/190), and unidentified helminth eggs 5.8% (11/190). Moreover, nematode larvae consisted of 8.4% (16/190) hookworm/strongylid, 3.7% (7/190) of Strongyloides spp., and 4.2% (8/190) unidentified nematode larvae. The rates of soil-transmitted helminth contamination were not significantly different between Ratchasan and Bang Khla districts (p = 0.878). Conclusion: Soil-transmitted helminth contamination was found in the soil environment of the community temples with a high probability of spreading intestinal helminthiasis to the local residents. Therefore, public awareness campaigns should be conducted targeting people in the community to increase their knowledge and understanding about animal healthcare to prevent and control the spread of soil-transmitted helminthiasis. Keywords: soil contamination, soil-transmitted helminth, temple, Thailand, zoonotic helminth.

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Section: Discussionmentioning

confidence: 99%

Environmental soil contamination with zoonotic soil-transmitted helminths in the temple grounds of Chachoengsao Province, Thailand

Dokmaikaw

Suntaravitun

2023

Int J One Health

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“…However, as with other animal species, dogs and cats remain a source of parasitic infections to humans or other animals. In this sense, the close relationship between humans and pets indicates the need for detailed information on zoonotic parasite epidemiology [ 7 , 8 ]. The manifestation of clinical signs in pets depends on the parasite species or the presence of multiple species, their abundance, and on specific animal factors such as age or immunological status [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, this could vary depending on the parasitic species and the number of parasites [ 10 ]. Playgrounds represent an important focus of infection for humans, particularly children, and other domestic or wild animals [ 7 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Zoonotic Parasites in Playgrounds in Southern Spain: A One Health Approach

et al. 2023

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Zoonotic parasitic diseases are considered a global threat to public health. In this sense, canines and felines may be infected by different cosmopolitan parasites, with playgrounds serving as an important focus of infection for humans, as well as domestic or wild animals. Knowledge of the epidemiological situation of parasites in animal reservoirs integrated into the environment, identifying the spread pathways, is a key element for an effective response to this threat. Thus, the aim of this study was to assess the frequency of intestinal parasites with zoonotic potential in 120 playgrounds in the Malaga province (Spain). Samples were processed and analysed following standard parasitological procedures. Some 36.7% of playgrounds were parasite-positive with one or more zoonotic parasites. The most common parasites recovered were nematodes (60.0%), followed by protozoan species (33.3%) and cestodes (6.7%). In the parasite-positive playgrounds, Toxocara spp. (17.0 ± 3.5%) and Giardia duodenalis (17.0 ± 3.4%) were the most predominant parasites. In addition, 34.1% of playgrounds were infected with multiple parasites. Our results show a high presence of parasitic forms with zoonotic potential in playgrounds in Malaga, Spain. Due to the close contact between pets and humans in playgrounds, the potential zoonotic risk may increase if prevention and control measures are not designed.

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“…Dos seis locais públicos analisados, quatro poliparasitismo também foi visualizados em algumas investigações, como, por exemplo, em uma escola de Pelotas, na área de recreação, a associação foi vista entre ovos de Toxocara spp. e ancilostomídeos(MELLO, et al, 2022), já em praças públicas do mesmo município, Toxocara spp. e ancilostomídeos 06/29 (20,7%), Toxocara spp.…”

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Contaminação ambiental de praças públicas por parasitos com potencial zoonótico no extremo Sul do Brasil

Ferreira

Pedra

Leon

et al. 2022

CONJ

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A contaminação de áreas públicas por fezes de animais como cães e gatos ou, até mesmo, de humanos, pode representar um perigo para a saúde pública devido à possibilidade de transmissão de doenças entre as quais se destacam a larva migrans visceral (LMV), larva migrans cutânea (LMC), ascaridíase, tricuríase, entre outras. O presente estudo teve como objetivo verificar a contaminação do solo por ovos e larvas de parasitos com potencial zoonótico em solos de seis praças públicas localizadas na cidade de Pelotas, Rio Grande do Sul, Brasil. As coletas ocorreram entre os meses de março a setembro de 2022. De cada uma das praças, foram colhidas 05 amostras de solo para análise, totalizando 30 amostras analisadas durante o período. Para cada amostra, foram preparadas 05 lâminas para avaliação (quintuplicata), totalizando a leitura de 150 lâminas. Para o diagnóstico de formas parasitárias no solo, foi utilizada a técnica de Caldwell & Caldwell adaptada por Pessoa e Martins. Os locais analisados apresentaram a presença de formas evolutivas parasitárias, com positividade de 63,3% das amostras, sendo encontrados ancilostomídeos (46,6%), Toxocara spp. (36,6%), Trichuris spp. (10%), Toxascaris leonina (10%), cestódeos (10%), Ascaris lumbricoides (6,6%), e Dipylidium caninum (3,3%).

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Soil contamination by Ancylostoma spp. and Toxocara spp. eggs in elementary school playgrounds in the extreme south of Brazil

Cited by 3 publications

References 19 publications

Environmental soil contamination with zoonotic soil-transmitted helminths in the temple grounds of Chachoengsao Province, Thailand

Environmental soil contamination with zoonotic soil-transmitted helminths in the temple grounds of Chachoengsao Province, Thailand

Zoonotic Parasites in Playgrounds in Southern Spain: A One Health Approach

Contaminação ambiental de praças públicas por parasitos com potencial zoonótico no extremo Sul do Brasil

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