A Wild Poliovirus Type Ⅲ was Discovered in XinJiang, China

In May 1993,A two years old boy suffered with acuate paralysis in Xinjinang,China.From his stool a poliovirus type Ⅲ srain was isolated.Using PCR-RFLP test the strain was different from Sabin type Ⅲ,and could not react with Sabin Ⅲ probe.But according to serum nutralization test and Sero-type-PCR,it was really a polio type Ⅲ virus.So it was a wild Wild poliovirus type Ⅲ srain was isolated.Using PCR-RFLP test the strain was different from Sabin type Ⅲ,and could not react with Sabin Ⅲ probe.But according to serum nutralization test and Sero-type-PCR,it was really a polio type Ⅲ virus.So it was a wild Wild poliovirus type Ⅲ srain was isolated.Using PCR-RFLP test the strain was different from Sabin type Ⅲ,and could not react with Sabin Ⅲ probe.But according to serum nutralization test and Sero-type-PCR,it was really a polio type Ⅲ virus.So it was a wild poliovirus type Ⅲ strain.Since 1985 to 1995,more than 600 poliovirus isolates was analysised in China,most of the wild viruses strains were type I. This was the first time to discover wild ploiovirus type Ⅲ.Aplan for controlling the wild poliovirus type Ⅲ transmission has been suggested and discussed.