सरासनस्रायै बेयो जोबोद गोब्राब जायो नाथाय बेनि एसे लासै जानायखौ अब्ला नुयो जेब्ला सिगांनिफ्राइनो फलैविवायरासजों सनदेरजाखानाय ।
Generally it is very fast but some of its slow cases shows up when a person is already infected with a flavivirus .