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Researchers develop method to detect low levels of norovirus

Date: Mon 23rd September 2019

University of Arizona researchers have created a portable method for detecting low levels of norovirus.

The analysis is done automatically by a smartphone app when a sample of water is loaded onto the chip.

Detecting very small amounts of norovirus in water or food samples typically involves a polymerase chain reaction (PCR)-based method, which takes several hours and is done in a lab by trained personnel.

Noroviruses are the top cause of foodborne illness. A person usually develops symptoms 12 to 48 hours after being exposed to the virus. Most people get better within one to three days. During 2009 to 2015, the Foodborne Disease Outbreak Surveillance System (FDOSS) received reports of 1,130 norovirus outbreaks and 27,623 outbreak-associated illnesses.


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