Viral nucleic acid from throat swab samples or infected Vero/hSLAM cultures was extracted using the QIAamp Viral RNA/DNA Mini Kit (QIAGEN; Hilden, Germany) according to the manufacturer’s instructions. Viral nucleic acid was detected by real-time PCR/RT-PCR using a detection kit for MeV and rubella virus (RuV) (BioPerfectus Technologies, Taizhou, Jiangsu, China), human herpes virus type 6 (HHV6) and varicella-zoster virus (VZV) (Tianlong Biotechnology Co. Suzhou, Jiangsu, China) according to the manufacturer’s instructions. The detection of other viral febrile respiratory illnesses, such as human cytomegalovirus (CMV)29 (link), Epstein-Barr virus (EB)30 (link), human parvovirus B19 (B19)31 (link), human adenovirus (Adv), human enterovirus (HEV)32 (link) and herpes simplex virus type 133 (link), were carried out using the One Step PrimeScript™ RT-PCR Kit (Perfect Real Time) or Premix Ex Taq™ (Probe qPCR) (TaKaRa; Dalian, China) for RNA or DNA viruses as reported previously.
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