Encase quilts, pillows, mattress and box spring in allergen
USDA's Food Safety and Inspection Service currently permits voluntary labeling using the two formats required for FDA-regulated foods and, according to Harkin, USDA has the authority to mandate major allergen
labeling to alleviate the risk to public health.
Researchers found inner city children allergic to and exposed to cockroach allergen
had longer periods of coughing and wheezing and more time off school than these other sources of allergies.
But when an allergic person comes into contact with an allergen
, such as Fel d1, their immune system has a different response.
In July, Congress passed the Food Allergen
Labeling and Consumer Protection Act.
and researchers with the Inner City Asthma Study examined the relationship between indoor allergen
exposure, skin test reactivity, and asthma symptoms in children in various geographic locations across the United States.
Cross-contact occurs when a small amount of food allergen
is mixed in with other, "safe" foods.
The investigators vacuumed several sites in each home and analyzed the samples for the presence of allergen
by enzyme-linked immunosorbent assays, said Ms.
One in every six sites had detectable amounts of a common allergen
produced by cockroaches, and about one in four had one or both of the dust-mite allergens
the researchers looked for.
For more than 30 years, in vitro assays for allergen
-specific IgE have been used along with or in place of skin-prick allergen
testing (SPT) (1).
The mechanics of human histamine response to protein allergens
occur when the immune system mounts an attack against an allergen
, sending out a cascade of chemicals that trigger the muscle spasms, swollen tissues and many other symptoms associated with asthma.
It relies on the reactivity and sensitivity of mast cells that have been sensitized with specific IgE to reflect allergen