Teaching Our Kids About Food Allergies – Free Food Allergy Posters

Wanted Poster: Sources of cross contact

Accompanying Information

Cross contact is the presence of unintended food allergen. Exposure to an allergen by cross contact is a common cause of allergic reactions. Cross contact of food allergen can occur from contact with surfaces, other foods, and with transfer of saliva. If a person is then exposed to these allergens, especially by mouth, it may be enough of an exposure to cause a serious allergic reaction. Keep in mind that allergens can withstand heating and drying and exposure to small amounts of allergen is enough to result in anaphylaxis. Saliva, whether from a person or a pet can contain allergens and therefore can be a source of cross contact. For this reason sharing of anything that goes in the mouth can become a source. If students have contact with pets, keep in mind that pet food can contain allergens. Preventing cross contact with cleaning is important. Establish a cleaning protocol to avoid cross contact.
Find out more here.


All information contained on the AllergyHome.org website is intended for informational and educational purposes. The information provided on this website is not intended to be a replacement or substitute for professional medical advice. Any information that you have received from AllergyHome.org should be verified with your licensed health care provider. Furthermore, decisions regarding medical care should not be based solely upon the content of this website but made after discussions with your health care provider. Consumers should never disregard or delay seeking medical advice due to the content of this site.
Your use of this site does not create a patient-physician relationship between you and AllergyHome.org.
Medical information changes constantly. Therefore the information on this site or on the linked websites should not be considered current, complete or exhaustive, nor should you rely on such information to recommend a course of treatment for you or any other individual. Reliance on any information provided on this site or any linked websites is solely at your own risk.

Please note that AllergyHome has no affiliation with Boston Children’s Hospital

Accept Decline