People with AIDS do not necessarily have fever. For AIDS patients, the fever that appears is usually in several stages: First, the acute infection period, this time is usually around 2-4 weeks after the infection of HIV, the main appearance is the flu-like symptoms, will appear fever. Second, the AIDS stage, this stage is generally the patient performance is prolonged low-grade fever, body temperature in the 38-38.5 degrees or so. Third, AIDS patients with opportunistic infections, such as Pneumocystis pneumonia, tuberculous meningitis and other infections such as cryptococcal meningitis, patients may have high fever with body temperature greater than 39 degrees or more. This is not absolute, and some AIDS patients have a normal temperature. If a patient with AIDS is in the asymptomatic phase, there are usually no symptoms, including a normal body temperature.