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Updated: Jun 28, 2026

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EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. Part III. Virus Detection by RT-qPCR
Published on: January 16, 2016
The effect of fecal turbidity on norovirus detection by reverse transcriptase polymerase chain reaction
Kristie J Witlox1, Theo Karapanagiotidis, Leesa D Bruggink
1Victorian Infectious Diseases Reference Laboratory, North Melbourne, Victoria, Australia.
Diagnostic Microbiology and Infectious Disease
|October 24, 2008
Abstract:
A 10-min fecal preparation results in greater specimen turbidity than a 45-min protocol, but reverse transcriptase polymerase chain reaction (RT-PCR) norovirus test sensitivity is essentially the same. Feces processed so that particle size does not exceed approximately 560 nm do not display greater norovirus RT-PCR inhibitory effects than those that have undergone greater purification.

