Final answer:
The purpose of antibiotic use described in the question is treating bacterial infections.
Step-by-step explanation:
The purpose of antibiotic use described in the question is treating bacterial infections.
Antibiotics are medications specifically designed to kill or slow the growth of bacteria in the body. When an animal contracts a disease caused by a bacterial pathogen, antibiotics can be used to target and destroy the bacteria, allowing the animal to recover from the infection.
It is important to note that antibiotics are not effective against viral infections, which are caused by viruses, not bacteria. Antibiotics should only be used for bacterial infections to prevent the development of antibiotic resistance.