Contact with spores
is not spread person to person! as we saw in 2001, spores that were sent thru the mail as a terrorist act can be inhaled & cause pulmonary anthrax.
Short of this exposure, spores can be ingested on contaminated (uncooked) food and cause infection from the base of the tongue thru the GI tract. It can also cause a painless sore on the skin. See www.Bt.Cdc.Gov/agent/anthrax.