1. Stage 1: Acute infection period: Transient symptoms similar to colds may occur in 2-4 weeks, such as low fever, fatigue, unexplained laryngitis, sudden weight loss, headache, nausea, muscle and joint pain, night sweats, persistent diarrhea, swollen lymph nodes, rash, etc. The so-called rash is a small pimple on the body.
2. Asymptomatic infection period
3. Onset period
4. Late hairstyle