Comparative inactivation of enteric adenoviruses, poliovirus and coliphages by ultraviolet irradiation

Qin Shao Meng, Charles P. Gerba

Research output: Contribution to journalArticle

153 Scopus citations

Abstract

The inactivation of enteric adenoviruses 40 and 41 by ultraviolet (UV) radiation was investigated and compared with poliovirus type 1 (strain LSc-2ab) and coliphages MS-2 and PRD-1. Purified stocks of the viruses were exposed to collimated ultraviolet radiation in a stirred reactor for a total dose of up to 140 mW s/cm2. The doses of UV to achieve a 90% inactivation of adenovirus 40, adenovirus 41, coliphages MS-2 and PRD-1 and poliovirus type 1 were 30, 23.6, 14, 8.7 and 4.1 mW s/cm2, respectively. Adenovirus 40 was significantly more resistant than coliphage MS-2 to UV irradiation (P < 0.01). Adenovirus 41 appeared slightly more sensitive than adenovirus 40, but the difference was not significant (P > 0.05). The resistance of PRD-1 was less than MS-2 (P < 0.01), but greater than poliovirus type 1 (P < 0.01). Adenoviruses 40 and 41 were more resistant than Bacillus subtilis spores, often suggested as an indicator of UV light performance. The double-stranded DNA adenoviruses appear to be the most resistant of all potentially water-borne enteric viruses to UV light disinfection.

Original languageEnglish (US)
Pages (from-to)2665-2668
Number of pages4
JournalWater research
Volume30
Issue number11
DOIs
StatePublished - Nov 1996

Keywords

  • Coliphage MS-2
  • Coliphage PRD-1
  • Disinfection
  • Enteric adenovirus
  • Inactivation
  • Poliovirus
  • UV irradiation
  • Water

ASJC Scopus subject areas

  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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