Abstract
Live attenuated Newcastle disease virus (NDV) vaccines have been used widely to protect chickens against Newcastle disease. However, the vaccine issues caused by genome mutations can seriously affect poultry health. In this study, the authors demonstrate the use of nanopore sequencing technology for rapid genome determination and variation analysis from a live attenuated NDV vaccine. NDV-specific reads were detected immediately after sequencing, and 24× genome coverage was obtained within 10min. Variation analysis revealed 19 variant sites across the vaccine genome compared to the NDV clone 30reference sequence. The sequencing and data analysis workflow employed enables all basic molecular biology laboratories to perform detailed genome sequencing in live attenuated vaccine, providing an effective means of quality control for vaccine production.
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