Springtime pollen is again tormenting seasonal allergy sufferers. But an estimated 20 million Americans are sniffling year-round because of an indoor culprit: dust mites. They may be the most common cause of ongoing allergy and asthma attacks, according to the Asthma and Allergy Foundation of America. However, as Dennis Douda reports, you can fight back.
Journalists: A broadcast-quality video pkg (1:00) is in the downloads. Read the script.