DayZ Standalone on Xbox One, S, and X, all suffer from this glitch. Once you're sick, you're status does not either decline, or increment/gain. Sneezing and coughing is constant despite blood transfusions, charcoal tablets, chlorine tablets, alcohol tinctures, Tetracycline Pills, and Codeine Pills being utilized in combination with rest, group support, and laying near multiple camp fires.
Bug is game breaking, and forces players to commit suicide, since the sickness does not relieve, or become so severe that it either kills, or incapacitates the player outright.
Steps to repeat are:
• Drink Unpurified/Infected Water Source (Pond near Pavlovo)
• Acquire Sickness/Poisoning
• Utilize All Methods Supported Above In Any Combination
• Sickness Will Not Resolve, Or Advance
• Sickness Will Persist, but not affect Player Health/Water/Food Levels
• Sickness causes Player to Cough and Sneeze repeatedly unless suicide
• Sickness also follows player suicides (in rare instances, uncurable, does not kill player, or become worse)
Suggestions:
• Remove ALL Sickness until Diseases and Statuses can be properly described in a way that players themselves can analyze, diagnose using in-game tools, and can actually "cure" on Xbox One
• Remove ALL Sickness and Disease Until Actual, Ingame Items can be used to resolve the illness.
At this time, SICKNESS CANNOT BE CURED, IS NOT FATAL TO PLAYERS, AND DOES NOT HAVE PROPER ADVANCING, OR RECOVERY STAGES