First responders must be aware of which similarity between biological and radiological agents in cases of MCls? They both kill organisms immediately
They may both have victims that unknowingly spread the contamination
They both cause difficulty breathing and require immediate medical attention.
They are both odorless.

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.

answer:

call 911 ofcourse if at all possible