CDC Yellow Book: Injury and Death During Travel

Edition: 2026

“Top takeaway: Healthcare professionals should promote awareness of travel-related injury risks to international travelers.

Carbon monoxide (CO) inhalation, poisoning, and death can occur during fires but also can result from exposure to improperly vented heating devices (see Air Quality and Ionizing Radiation During Travel chapter; and Poisonings, Envenomations, and Toxic Exposures During Travel chapter). Travelers might want to bring a personal CO detector that can sound an alert in the presence of this lethal gas. Engine exhaust is a dangerous, unanticipated source of CO poisoning; remind travelers to avoid diving and swimming off the back of boats where exhaust fumes typically discharge.”