मोनसे सेर'टाइप बारदेरनाया जिउ गोलाव हम'लगास इमुनिटि होनो हागौ नाथाय गुबुन सेर'टाइपनि हेंथायै रैखाथि होआ आरो बेनि सोलायै उननि बारदेरनायफोरा बांसिन गाज्रि जालांनो हागौ ।
Infection with one serotype provides life long homologus immunity but does not provide protection against otherserotypes and instead may exacerbate subsequent infection .