Air Traffic Control Fully Certified
Air Traffic Control Military 8; Air Traffic Control Radar 20
Fatigue; Time Pressure; Workload
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Environment - Non Weather Related; Human Factors; Staffing; Procedure
I was working enroute Center for two hours and 20 minutes with heavy to moderate traffic without the help of a D side. Sector XX.  Normally this would not be a problem but during the coronavirus situation there is a skeleton crew of controllers in the area and we are short staffed. Training in the area was also underway.  Also; we had no management in the area acting as a Supervisor.  We had a Controller-in-Charge position staffed by one of the FPLs in the area.  After working 2 hours of heavy traffic I began to tire and was transposing callsigns and missing check-ins.I asked one of the controllers working another less busy sector to swap positions with me.  I just could not work that volume of traffic anymore. The Controller was kind enough to swap with me. I was mentally drained. The culture does not generally allow for complaints of this type.  After my break (which I am on right now) I will do it all over again.  If this continues the risk grows of a Controller contributing to error within the airspace. This is normally not necessary.  This is a very busy time of the year and it is unbelievable that the FAA would allow this lack of staffing and allow the normal flow of traffic.  This situation routinely happens at ZZZ (Center) in Area X; I am not sure about the other areas; but I have heard similar things from other controllers.
Center Controller reported becoming fatigued due to working heavy traffic for an extended period of time and cited low staffing levels as a contributing factor.