How many eggs does enterobius vermicularis produce?

Searched over 200M research papers

Summary

4 papers analyzed

These studies suggest female Enterobius vermicularis deposit 10,000 to 16,000 eggs.

Research summarized with Copilot

19 papers analyzed

Introduction

Enterobius vermicularis, commonly known as the pinworm, is a parasitic worm that infects the intestines of humans, particularly children. One of the key aspects of understanding the lifecycle and impact of this parasite is determining the number of eggs produced by gravid females.

Key Insights

Egg Production by Body Length:
- Female E. vermicularis begin producing eggs when they reach a body length of 5.50 mm or longer. The number of eggs increases with the length of the female worm, with those longer than 9.0 mm producing between 10,000 to 16,000 eggs.

Conclusion

Female Enterobius vermicularis produce eggs once they reach a body length of 5.50 mm or more, with the number of eggs increasing as the worm grows. Gravid females longer than 9.0 mm can produce between 10,000 to 16,000 eggs.

Sources and full results

Most relevant research papers on this topic

[Number of intrauterine eggs in female Enterobius vermicularis by body length]

Female Enterobius vermicularis begin to produce eggs in uterus when body length is 5.50 mm or longer, with gravid females over 9.0 mm depositing 10,000 to 16,000 eggs with the least individual variations.

10 Citations

1985

DOI

Egg positive rate of Enterobius vermicularis among preschool children in Cheongju, Chungcheongbuk-do, Korea.

The prevalence of Enterobius vermicularis in Cheongju city is relatively low, with a 7.9% overall egg positive rate in preschool children, with higher rates in boys and girls.

48 Citations

2006

DOI

Egg positive rate of Enterobius vermicularis of primary school children in Geoje island.

Enterobius vermicularis egg positive rates in primary school children in Geoje island are 9.8%, similar to those in the country, with more than 10% in male and female students.

32 Citations

2003

DOI

Enterobius vermicularis egg positive rate of pre-school children in Chunchon, Korea (1999).

Enterobius vermicularis egg positive rates in pre-school children in Chunchon, Korea, range from 9.2% to 9.7%, suggesting a need for more intensive regular control.

38 Citations

2000

DOI

Transmission of Enterobius vermicularis eggs through hands of school children in rural South Africa.

Improved sanitation facilities and handwashing with soap in schools are crucial to prevent the transmission of Enterobius vermicularis eggs among schoolchildren in rural South Africa.

19 Citations

2015

DOI

Enterobius vermicularis: 10,000-Year-Old Human Infection

Enterobius vermicularis (human pinworm) eggs were found in human coprolites from Hopug and Danger Caves, western Utah, representing the earliest known association between man and this exclusively human parasite.

99 Citations

1969

DOI

Enterobius vermicularis infection.

Enterobiasis is a common helminth infection, with prevalence rates up to 100% in northwestern Europe and the USA, and is often treated with simple home remedies.

188 Citations

1994

DOI

The finding of Enterobius vermicularis eggs in pre-Columbian human coprolites.

Enterobius vermicularis eggs were found in pre-Columbian human coprolites from 400 BC to 800 AD in Chile, suggesting its introduction to the continent.

33 Citations

1985

DOI

Egg positive rate of Enterobius vermicularis and Taenia spp. by cellophane tape method in primary school children in Sivas, Turkey.

Enterobius vermicularis and Taenia spp. egg positive rates are still prevalent among primary school children in Sivas, Turkey, with higher rates in urban slum regions.

25 Citations

2005

DOI

In vitro embryonation of Syphacia obvelata eggs.

Syphacia obvelata eggs are less resistant to environmental factors and require more intimate contact between hosts for transmission than Enterobius vermicularis eggs.

20 Citations

1993

DOI

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