Bolivian hemorrhagic fever virus is a viral pathogen that causes a severe illness known as Bolivian hemorrhagic fever. It is primarily transmitted to humans through contact with infected rodents, particularly the Calomys callosus species. The virus can lead to symptoms such as fever, bleeding, and organ failure, which can be fatal if not treated promptly. The disease is most commonly found in Bolivia, where outbreaks have occurred, particularly in rural areas. Prevention strategies focus on controlling rodent populations and minimizing human exposure to these animals. Early diagnosis and supportive care are crucial for improving survival rates in infected individuals.