<span>President Andrew
Jackson, who had always defended the right of states in past conflicts,
this time, was on the side of the federal authorities in this conflict
of interest, asking Congress to authorize him to use military force
against South Carolina , if it becomes necessary. President
Jackson sent ships to the ports of South Carolina to collect tariffs,
at the time when Congress was already working on a new compromise bill,
to lower tariff rates at acceptable prices. <span>South Carolina accepted the new plan, and for a time, the whole issue of separation was forgotten.</span></span>
Answer: It was a disease spread through contact with animals (zoonosis), basically through fleas and other rat parasites (at that time, rats often coexisted with humans, thus allowing the disease to spread so quickly).
