List of the viruses that can cause a PCR test to give false positives: H1N1 (2009) Seasonal H1N1 Influenza Virus H3N2 Influenza Virus H5N1 Avian Influenza Virus H7N9 Avian Influenza Virus Influenza B Yamagata Influenza B Victoria RSV Type A RSV Type B Enterovirus A Enterovirus...See more