TAS2R38 and congenital rubella syndrome: Since T2R38 activity can be measured in a semi-quantitative manner using a taste test with PTC strips [29], evidence of an involvement of specific TAS2R38 genotypes in CRS susceptibility or prognosis (favourable versus poor outcomes) could be exploited to easily identify patients at risk of difficult-to-treat-sinusitis, without expensive genotyping tests.