Destroying the remaining stocks of variola , or small pox virus , is seen by some countries as the final chapter in eradicating the disease to prevent the risk of accidental release .

销毁天花，或者小痘病毒的剩余库存，在一些国家，被认为是消除这种疾病，防止意外释放病毒所造成事故的最好办法。