Kyasanur Forest Disease virus (KFDV)

Kyasanur Forest Disease virus (KFDV) is a highly pathogenic tick-borne virus belonging to the Flaviviridae family and the genus Flavivirus (CDC, 2023). It is the causative agent of Kyasanur Forest Disease, a viral hemorrhagic fever endemic to the Karnataka state and surrounding regions in India (WHO, 2021). The virus possesses a single-stranded, positive-sense RNA genome that encodes a single polyprotein, which is post-translationally cleaved into three structural proteins and seven non-structural proteins (UniProt, 2024). While the virus itself is the pathogen, its internal components such as the NS5 RNA-dependent RNA polymerase and NS3 protease are the primary molecular targets for antiviral drug development (PubMed: 30124256). Currently, there are no FDA-approved specific antiviral therapies, and management is limited to supportive care and a formalin-inactivated vaccine that requires multiple doses to maintain efficacy (NCBI, 2022). The disease is characterized by a biphasic illness, with the second phase often involving neurological symptoms like encephalitis (StatPearls, 2023).

Other names

Monkey Fever virusKFD virus

Induction of active immunity via neutralizing antibodies against the viral envelope protein (vaccine); inhibition of viral RNA-dependent RNA polymerase (experimental nucleoside analogs like Galidesivir).