American scientists develop simple system to detect influenza virus from nasal or throat swabs Influenza virus quickly and reliably detected from nasal or throat swabs Nearly every winter sees a fresh wave of influenza, threatening people by its highly contagious character and severe pathogenesis if those with weak or compromised disease fighting capability are infected . However when perform sniffing and temperature only indicate a bad cold so when could it be real influenza? American researchers have developed a straightforward system for examining for the influenza virus by just taking nasal or throat swabs and calculating the viral presence amperometrically by assessing the glucose level.