उन - पलिअ लैक्षोन गोनां बैफोरो भाइरासनिफ्राय गिबि नाख्रेबनायखौ उनसंनानै लैक्षोनफोर गैयालासै गोबाव समफारि - हालागै थागोन ( सरासनस्रायै 10 - 40 बोसोरफोरनि गेजेराव ) ।
Those with post polio syndrome will have had a long period without symptoms following the initial attack from the virus usually between 10 40 years .