<prompt> KFD is caused by ?FlavivirusMyxovirusAlphavirusPhlebovirus  <response>: kyasanur forest disease:- Agent- group B toga virus flavivirus. Rats and squirrels- main reservoir Monkeys- amplifier host. Vectors- Haemaphysalis. Age: 20-40 years. Sex- males more Mode of transmission- monkeys and ticks. By th bite of infective ticks. Incubation period- 3-8 days. Reference: park;s textbook of preventive and social medicine, 23rd edition, pg no.289 