We previously demonstrated that murine leukemia virus (MLV)-based vectors containing two primer-binding sites (PBSs) have the capacity to initiate reverse transcription more than once (Y. A. Voronin and V. K. Pathak, Virology 312:281-294, 2003). To determine whether human immunodeficiency virus (HIV)-based vectors also have the capacity to initiate reverse transcription twice, we constructed an...

Hop stunt viroid (HSVd), a significant pathogen of some hop cultivars, was detected for the first time in hops Australia. Plants were tested graft-transmissible pathogens prior to their use research trials. Upon observing symptoms indicative potential infection, RNA extracted and amplified using reverse transcription polymerase chain reaction (RT-PCR); HSVd identity confirmed by sequencing.

Background: Sinonasal symptoms were usually reported to appear initially, yielding the important for early detection of coronavirus disease 2019 (COVID-19). This study was conducted retrospectively investigate detailed sinonasal manifestations and dynamic profile real-time reverse transcription polymerase chain reaction (RT-PCR) results severe acute respiratory syndrome 2 (SARS-CoV-2) in COVID-...