Kyasanur Forest disease
(kya‵să-noor' 
)
A viral encephalitis transmitted to humans by tick bite, esp. in certain regions of India.
Incidence: Between 100 and 500 people are affected annually.
Causes: A variety of animals are thought to be reservoir hosts for the disease, including porcupines, rats, squirrels, and mice. The vector for the disease is a tick of the genus Haemaphysalis.
Symptoms and Signs: Symptoms include a high fever with headaches, followed by hemorrhage from the nasal cavity, throat, and gums, and gastrointestinal bleeding.
Prevention: Prophylaxis by an attenuated live vaccine is available. Preventive measures like protective clothing, tick control, and mosquito control are advised.
Treatment: There is no specific treatment for Kyasanur Forest disease.
Patient Care: An affected person may recover in two weeks, but the convalescent period is usually very long and lasts several months. The patient will experience muscle aches and weakness and will be unable to engage in physical activities.