"Known allergies" refers to any allergies that a person is already aware of, meaning they have previously experienced an allergic reaction to a particular substance or food. Full definition
NO food / drink allowed in class due to life - threatening known allergies in the TLC community. (thelovedchild.net)
EXCEDE is contraindicated in animals with known allergy to ceftiofur or to the ß - lactam group (penicillins and cephalosporins) of antimicrobials. (zoetisus.com)
Some brands may contain slightly different components than another — which might be relevant if your child has a very specific known allergy to a particular brand's ingredient — but the vaccines are generally pretty similar. (redwineandapplesauce.com)