Can encephalitis occur without fever?

Generally speaking, fever refers to an elevated body temperature. However, encephalitis may occur without fever, although such cases are relatively less common compared to those with fever. The details are as follows:

Encephalitis refers to inflammatory changes in the brain parenchyma caused by pathogen invasion. Typical clinical symptoms include fever, headache, body aches, nausea, vomiting, and fatigue. Nevertheless, some patients with encephalitis may not develop fever. This could be due to severely compromised immunity or underlying immune deficiencies that prevent the body from mounting a febrile response. However, such cases are relatively rare.

Patients diagnosed with encephalitis can take oral antibiotics and anti-encephalitis medications to help alleviate and treat the condition. In addition, it is important to maintain a balanced diet, consume light and easily digestible foods, ensure adequate rest and sufficient sleep, and engage in appropriate outdoor activities and exercise to strengthen the body's immune system. It is recommended to avoid spicy or irritating foods.

If a patient develops any discomfort or symptoms, prompt medical attention at a hospital is advised to prevent delays in diagnosis and treatment.