Emergency vaccination alleviates highly pathogenic porcine reproductive and respiratory syndrome virus infection after contact exposure

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Xiao Li, Li Qiu, Zengqi Yang^*, Ruiyi Dang and Xinglong Wang^*

* Corresponding authors: Zengqi Yang nwafucrb@gmail.com - Xinglong Wang wxlong@nwsuaf.edu.cn

BMC Veterinary Research 2013, 9:26 doi:10.1186/1746-6148-9-26