Silent killer

Seven deaths in Kirksville, Mo., and another seven deaths and more than 200 cases of poisoning in the Northwest have been attributed to carbon monoxide. The poisonings were so widespread in the Pacific Northwest because some people used charcoal grills and portable generators in enclosed spaces after a storm knocked out power across the region.

Carbon monoxide is especially dangerous because it is odorless and colorless. The symptoms are similar to those of the flu. They include headache, fatigue, shortness of breath, nausea and dizziness.

Carbon monoxide poisoning can be prevented by making sure appliances have been installed according to codes and by never using natural-gas appliances such as ovens and clothes dryers to heat a home. A CO detector can be installed in the hall near every separate sleeping area. The detector should not be covered by draperies or furniture.

Anyone experiencing these symptoms should seek fresh air immediately, turn off fuel-burning appliances and call the fire department.