This powerpoint presentation begins by presenting current challenges of human enteric viruses, including the following:
regulatory framework uses coliform bacteria to assess
pathogen risk in source and drinking waters; indicator bacteria not ideal for viruses;
lack of co-occurrence in environment;
differential susceptibility through treatment;
waterborne disease outbreaks in coliform-negative
waters; and, there is a
need for a better predictor of viral risk. Topics covered include: indicator bacteria and viruses - correlations and contradictions; virus detection - methods and alternative indicators; and, Torque Teno Virus (TTV) - a potential indicator of enteric viruses. Presentation summary includes the following:
traditional bacterial indicators appear to indicate
pathogenic bacteria well, but not enteric viruses;
lack of reliable correlation in surface waters, groundwaters, and treatment systems; waterborne outbreaks of virus etiology under coliform-negative
conditions;
coliphages and other enteric viruses proposed but not
integrated into regulatory framework;
TTV prevalence, temporal stability, and lack of
pathogenicity differ from enteric viruses; and,
viral analog to traditional bacterial indicators. Includes 19 references, tables.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.1 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 5 |
| Published : | 11/01/2008 |
