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Our study aimed to determine whether a virus from fecal samples is human rotavirus (HRV), the main pathogen that causes autumn diarrhea. Specimens were obtained from the feces from children with autumn diarrhea treated at Chuiyangliu Hospital and used to infect MA104 cells, subcultured and observed by electron microscopy. RNA was extracted, cDNA was synthesized by reverse transcription, and plaque formation and hemagglutination were assessed. The cytopathic effect (CPE) were associated with the fourth passage in subculture. CPE extracts were examined by electron microscopy, which allowed us to observe the shape of HRV particles. Amplification of the VP4 gene from HRV was used to identify the viruses as group A rotavirus. The virus causes red blood cell aggregation. The virus isolate was designated as HRV CY2017.
Pubmed ID: 32904816
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