<prompt> The most definitive method for laboratory diagnosis of poliomyelitis are AE ?Virus isolation from bloodVirus isolation from CSFVirus isolation from faeces or throatSerological diagnosis  <response>: Ans. is di.e., Serological diagnosis Lab diagnosis of polio . 67rus isolation in tissue culture is the best method for specific diagnosis. . Specimens Blood, CSF, Throat swab, Feces . Primary monkey kidney cultures are used. Serodiagnosis is less often employed. 