Lymphocytic choriomeningitis rus Spread by the common mouse, as mice can become chronically infected by maintaining the virus in their blood, as well a s vertical transmission Humans can be infected through inhalation, ingestion, and ex posure to open cuts and wounds Onset typically occurs 1 to 2 weeks after exposure, and the initial phase' s common symptoms include fever, lack of appe tite headache, muscle aches, malaise, nausea, and/ or vomiting Meningitis or encephalitis occurs in the second phase, sever al days after the recovery of the initial phase. Pathological findings during the first stage consist of leuk openly and thrombocytopenia. During the second phase, typical find ngs include elevated protein levels, increased leukocyte count r a decrease in glucose levels of the cerebrospinal fluidLymphocytic Choriomeningitis Virus Spread by the common mouse, as mice can become chronically infected by maintaining the virus in their blood, as well a s vertical transmission. Humans can be infected through inhalation, ingestion, and ex posure to open cuts and wounds Onset typically occurs 1 to 2 weeks after exposure, and the initial phase’s common symptoms include fever, lack of appe tite, headache, muscle aches, malaise, nausea, and/or vomiting. Meningitis or encephalitis occurs in the second phase, sever al days after the recovery of the initial phase. Pathological findings during the first stage consist of leuk openia and thrombocytopenia. During the second phase, typical find ings include elevated protein levels, increased leukocyte count, or a decrease in glucose levels of the cerebrospinal fluid. • • • • •