ArticleApplied and environmental microbiology2006
Inactivation of single-celled Ascaris suum eggs by low-pressure UV radiation.
Article in Applied and environmental microbiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
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Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.
- Ultraviolet sensitivity of WASH (water, sanitation, and hygiene) -related helminths: A systematic review.PLoS neglected tropical diseases · 2019Pooled it
- Investigating cement-based surfaces as a sustainable flooring solution to improve Ascaris Suum egg removal and inactivation in low-resource settings.PLoS neglected tropical diseases · 2025Article
- Simultaneous inactivation of antibiotic-resistant bacteria and degradation of antibiotic-resistant genes in alkalised human urine.Frontiers in microbiology · 2025Article
- Environmental modulators on the development of the raccoon roundworm (International journal for parasitology. Parasites and wildlife · 2024Article
- Ascaris Mouse Model Protocols: Advancing Research on Larval Ascariasis Biology.Current protocols · 2024Article
- A Comparison of the Prevalence of Gastrointestinal Parasites in Wild Boar (Animals : an open access journal from MDPI · 2024Article
- Effect of Selected Entomopathogenic Fungal Species on Embryonic Development ofAnimals : an open access journal from MDPI · 2023Article
- Ultraviolet disinfection of Schistosoma mansoni cercariae in water.PLoS neglected tropical diseases · 2021Article
- Sensitivity of Bacteria, Protozoa, Viruses, and Other Microorganisms to Ultraviolet Radiation.Journal of research of the National Institute of Standards and Technology · 2021Article
- Viability ofZebrafish · 2019Article
- A modified approach to recover and enumerate Ascaris ova in wastewater and sludge.PLoS neglected tropical diseases · 2019Article
- Assessment of the inhibitory effects of disinfectants on the embryonation of Ascaridia columbae eggs.PloS one · 2019Article
- The inactivation of Ascaris suum eggs by short exposure to high temperatures.Journal of water, sanitation, and hygiene for development : a journal of the International Water Association · 2018Article
- Concentration of soil-transmitted helminth eggs in sludge from South Africa and Senegal: A probabilistic estimation of infection risks associated with agricultural application.Journal of environmental management · 2018Article
- The time-temperature relationship for the inactivation ofJournal of water, sanitation, and hygiene for development : a journal of the International Water Association · 2017Article
- Effect of reagents used during detection and quantification of Ascaris suum in environmental samples on egg viability.Water science and technology : a journal of the International Association on Water Pollution Research · 2017Article
- Enterobius vermicularis as a Novel Surrogate for the Presence of Helminth Ova in Tertiary Wastewater Treatment Plants.Applied and environmental microbiology · 2017Article
- Detecting and enumerating soil-transmitted helminth eggs in soil: New method development and results from field testing in Kenya and Bangladesh.PLoS neglected tropical diseases · 2017Article
- Effects of Disinfectants on Larval Development of Ascaris suum Eggs.The Korean journal of parasitology · 2016Article
- Pathogen and Particle Associations in Wastewater: Significance and Implications for Treatment and Disinfection Processes.Advances in applied microbiology · 2016Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Intact and decorticated single-celled Ascaris suum eggs were exposed to UV radiation from low-pressure, germicidal lamps at fluences (doses) ranging from 0 to 8,000 J/m2 for intact eggs and from 0 to 500 J/m2 for decorticated eggs. With a UV fluence of 500 J/m2, 0.44-+/-0.20-log inactivation (mean+/-95% confidence interval) (63.7%) of intact eggs was observed, while a fluence of 4,000 J/m2 resulted in 2.23-+/-0.49-log inactivation (99.4%). (The maximum quantifiable inactivation was 2.5 log units.) Thus, according to the methods used here, Ascaris eggs are the most UV-resistant water-related pathogen identified to date. For the range of fluences recommended for disinfecting drinking water and wastewater (200 to 2,000 J/m2), from 0- to 1.5-log inactivation can be expected, although at typical fluences (less than 1,000 J/m2), the inactivation may be less than 1 log. When the eggs were decorticated (the outer egg shell layers were removed with sodium hypochlorite, leaving only the lipoprotein ascaroside layer) before exposure to UV, 1.80-+/-0.32-log reduction (98.4%) was achieved with a fluence of 500 J/m2, suggesting that the outer eggshell layers protected A. suum eggs from inactivation by UV radiation. This protection may have been due to UV absorption by proteins in the outer layers of the 3- to 4-microm-thick eggshell. Stirring alone (without UV exposure) also inactivated some of the Ascaris eggs (approximately 20% after 75 min), which complicated determination of the inactivation caused by UV radiation alone.
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