Soil contamination by Toxocara spp. eggs in a University in Mexico City

Trejo, Carlos Antelmo Celis; Núñez, Camilo Romero; Contreras, Adelfa del Carmen García; Barrera, Germán Eduardo Mendoza

doi:10.1590/s1984-29612012000300022

Cited by 12 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Additionally, type of soil, pH and vegetation density can play a major role in survival of Toxocara ova. [39][40][41] Beside, some human risk factors such as geophagia and/or pica, mostly in low-income countries, highlight the importance of soil as a main source of infection in propagation of toxocariasis. Children are usually more prone to accidentally ingest Toxocara spp.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Toxocara spp. eggs in soil of public areas in Iran: A systematic review and meta-analysis

Maleki

Khorshidi

Gorgipour

et al. 2018

Alexandria Journal of Medicine

View full text Add to dashboard Cite

Toxocariasis is a zoonotic and widespread infection which manifest as a spectrum of syndromes in humans such as visceral, neural, ocular, covert and asymptomatic. Herein we aimed to design a systematic review and meta-analysis to determine the prevalence of Toxocara spp. eggs in soil depositories in Iran. English (PubMed, Scopus, Google Scholar, Web of Science, Science Direct, EBSCO, and Ovid) and Persian (Scientific Information Database and Magiran) databases were explored. This review resulted in a total of 14 publications meeting the inclusion criteria during January 2000-November 2016. Altogether, 3031 soil samples were examined among which 470 were positive in terms of Toxocara spp. The weighted overall prevalence of Toxocara spp. in soil samples was 16% (95% CI = 11-21%), and Tehran and Qazvin provinces had the highest and lowest prevalence rates, respectively. Metaregression analysis showed that the correlation between prevalence of Toxocara eggs in soil with sample size (P = 0.45) and year of study (P = 0.42) were not statistically significant. Further studies are highly recommended to enlighten different aspects of toxocariasis in Iran.

show abstract

Section: Discussionmentioning

confidence: 99%

Prevalence of Toxocara spp. eggs in soil of public areas in Iran: A systematic review and meta-analysis

Maleki

Khorshidi

Gorgipour

et al. 2018

Alexandria Journal of Medicine

View full text Add to dashboard Cite

show abstract

“…The recovery of T. canis eggs from soil samples depends on several factors, such as environmental conditions (including light, temperature, humidity and air quality) 4 , the sampling site, the laboratory method employed etc 21 . Toxocara spp.…”

Section: Resultsmentioning

confidence: 99%

ASSESSMENT OF THE PRESENCE OF Toxocara EGGS IN SOILS OF AN ARID AREA IN CENTRAL-WESTERN ARGENTINA

Bojanich

Alonso

Caraballo

et al. 2015

Rev. Inst. Med. trop. S. Paulo

View full text Add to dashboard Cite

With the aim of studying the contamination of soils with eggs of Toxocara spp. in an arid area in the central-western region of Argentina, 76 soil samples were collected from 18 towns belonging to six provinces of central-western Argentina. They were processed by the centrifugal flotation method. No eggs of Toxocara spp. were found. It can be concluded that the negative results are directly related to the characteristics of the environment and climate present in the studied area. The finding of eggs in soils depends on several factors: the presence of canine or feline feces, the hygienic behavior of pet owners, the presence of stray animals without veterinary supervision, the weather and environmental conditions, and laboratory techniques used; and all these circumstances must be considered when comparing the results found in different geographical regions. In order to accurately define the importance of public spaces in the transmission of infection to humans, it is important to consider the role of backyards or green spaces around housing in small towns, where the population is not used to walking pets in public spaces, and in such cases a significant fraction of the population may acquire the infection within households.

show abstract

“…Soil type, pH and percentage of vegetation cover impact upon contamination and viability with clay soils negatively impacting on egg viability [46]. The substrate, light, temperature, humidity, pH and vegetation cover therefore, are important factors for egg availability, development and survival.…”

Section: Soil Contamination Of Toxocara Spp Eggs Survival and Dispermentioning

confidence: 99%

Toxocariasis and Public Health: An Epidemiological Review

Chigozie¹

2017

Glob J Infect Dis Clin Res

View full text Add to dashboard Cite

An epidemiological review of toxocariasis aimed to underpin its prevalence, proclivity and prognosis was undertaken. Human toxocariasis constitutes one of the most common parasitic infections worldwide, which is more prevalent in developing and tropical countries. Human infection is caused by ingesting the eggs which were shed in the faeces of the defi nite dog or cat host. There is a range of clinical manifestations of toxocariasis in human, but the two classical clinical syndromes often described are visceral and ocular larva migrans. The clinical signs and complications which result from infection with this parasite are mostly dependent on the number and migration locations of Toxocara larvae. Visual identifi cation of larvae in tissues and organs is the gold standard for toxocariasis diagnosis in human, while an enzyme linked immunosorbent assay detecting Imunoglobulin-G antibodies against Toxocara excretory-secretory antigen is the reference test for immunodiagnosis. In human, loss of vision, hypereosinophilia, encephalitis and problems involving the liver, lung and the central nervous system are the most important complications. Poor hygiene, poverty and lack of education can exacerbate the exposure to Toxocara infection. Albendazole is the treatment of choice for toxocariasis. Conclusively, the present review recommends that regular stool examination and frequent chemotherapy of pets can be effective in reducing the egg number deposited in soil; reducing the number of pet animals or limiting contacts of small children with them and good hygiene practices will limit transmission of toxocariasis.

show abstract

Soil contamination by Toxocara spp. eggs in a University in Mexico City

Cited by 12 publications

References 12 publications

Prevalence of Toxocara spp. eggs in soil of public areas in Iran: A systematic review and meta-analysis

Prevalence of Toxocara spp. eggs in soil of public areas in Iran: A systematic review and meta-analysis

ASSESSMENT OF THE PRESENCE OF Toxocara EGGS IN SOILS OF AN ARID AREA IN CENTRAL-WESTERN ARGENTINA

Toxocariasis and Public Health: An Epidemiological Review

Contact Info

Product

Resources

About