When books become damp or wet, they can grow mold, causing health and allergy problems.
Otherwise.... it's just an excuse. Also... no one is scientifically allergic to reading.... also an excuse.
Anyone who knows that they are allergic to bees.
Anyone but Chuck Norris can.
The same as anyone else.
Anyone can get Poison Ivy if you are allergic to it.
I suspect that anyone can develop a allergic reaction to any medication depending upon what the medication contains and what they are allergic to. If you suspect you have had a allergic reaction, see your Doctor.
yes
No, it is not possible to be allergic to blood. Your immune system violently reacts to the allergens you are allergic to. If anyone were allergic to blood, they'd be dead by now. But it is possible to have a phobia of blood.
Presumably yes, although I am not aware of anyone actually confirming the presence of an allergic reaction in a sea creature.
Yes, people can be allergic to almost anything
Yes, peanut allergies are fairly common in the US.
They are probably allergic to one ingredient found in one gummy product while it is not found in the other.
What type are the symptoms?