A tragic incident occurred during a summer vacation, resulting in the death of a 5-year-old boy. The boy's father, from Colorado, is now sharing a warning with other parents. The boy died from a rare disease, although further details about the incident are not provided here.

For more information, readers can refer to the original source. The father's warning is intended for parents, but the specific details of the warning are not included in this brief summary. Readers can consult the source for a more detailed account of the incident and the father's message.