इमुनिटि मोननाया सुंथाब समनिथाखाय जानो हागौ जेरै भाइरेल जब्रा एबा लोन्थि एबा गेजेर सिथर बेरनायनि बेलायाव गोलाव सम जानो हागौ।
The immunity acquired may be for a short period like in viral fever or life long as in case of measles or chicken pox.