There are four stages of mono:
1. The incubation period, which is the time between exposure to the virus and when symptoms first appear. This can be anywhere from four to six weeks.
2. The acute phase is when the symptoms are at their worst. This usually lasts for two to four weeks.
3. The convalescent phase is when the symptoms start to improve. This can last for several weeks or even months.
4. The recovered phase is when the person has fully recovered and no longer has any symptoms of mono.