5. CONCLUSIONS
In conclusion, we detected and isolated a new strain of SVV and carried out analysis related to genetic evolution and geographic distribution. The new isolate showed the highest levels of similarity with the 2018 Vietnam strain (MH704432.1), thus representing a cause for concern with regards to the spread of the virus across borders. Genetic recombination and the effects of mutation on the final amino acid sequence of SVV may affect virulence and key characteristics of the virus and thus increase the adaptability of the virus in pigs. These results provide further insight into the epidemiology of SVV and will allow us to strengthen surveillance for potential SVV virus epidemics in China and develop strategies to prevent the spread of SVV if necessary.