जेब्ला भेक्टरनि रोजाथिया गोबां जायो दैज्लां आरो दैज्लांनि उन समावबो महामारिया गमामायै समब्रा- समब्रि गोरोबलांफायो।
Epidemics usually coincide with the monsoons and post-monsoon period when the vector density is high.