• xhristmas disease,
• vhristmas disease,
• fhristmas disease,
• dhristmas disease,
• cgristmas disease,
• cbristmas disease,
• cnristmas disease,
• cjristmas disease,
• curistmas disease,
• cyristmas disease,
• cheistmas disease,
• chdistmas disease,
• chfistmas disease,
• chtistmas disease,
• ch5istmas disease,
• ch4istmas disease,
• chrustmas disease,
• chrjstmas disease,
• chrkstmas disease,
• chrostmas disease

The adjective form of "Christmas Disease" is "Christmas".

The plural of the "Christmas Disease" can be the "Christmas diseases".

The singular of the "Christmas Disease" can be the "Christmas Disease".