Abstract
Two newly developed protocols for infective virus detection were compared to the plaque assay. An immunomagnetic separation procedure coupled with real-time reverse transcription-PCR of viral nucleic acids was developed to identify intact enteroviral particles, and a reporter cell system responding to viral replication based on fluorescent resonance energy transfer for detection of infectious enteroviruses was tested. Both new procedures detected infective viruses in environmental samples at the same level as the plaque assay.