In simple words: Sennetsu fever is an infection you can get from eating raw or undercooked fish. It causes symptoms like high fever, headache, muscle aches, nausea, vomiting, and loss of appetite.

Rickettsiosis due to Ehrlichia sennetsu, also known as Sennetsu fever, is an infectious disease caused by the bacterium Ehrlichia sennetsu.

Example 1: A patient presents with high fever, headache, muscle aches, and nausea after consuming raw fish. Blood tests confirm Ehrlichia sennetsu infection., A traveler returning from Japan experiences fever, chills, and fatigue. After ruling out other infections, the physician suspects Sennetsu fever and orders specific blood tests., A patient with unexplained fever and lymphadenopathy reports a history of eating undercooked seafood.Serological testing for Ehrlichia sennetsu is performed.

Symptoms, travel history, food intake history, laboratory results (blood tests, liver function tests).