Which treatment is commonly used for bacterial infections?

Antibiotics are the primary treatment used for bacterial infections. They work by targeting specific features of bacterial cells, effectively disrupting critical processes such as cell wall synthesis, protein synthesis, or DNA replication, which are vital for the survival and reproduction of bacteria. This targeted approach helps to eliminate the bacterial pathogen causing the infection while minimizing harm to the host's healthy cells.

In contrast, antivirals are designed to treat viral infections, not bacterial ones. Analgesics are medications that relieve pain but do not address the underlying infection itself. Vaccines are preventive measures that work by stimulating the immune system to recognize and combat specific pathogens before infection occurs, but they are not a treatment for an existing bacterial infection. Thus, antibiotics are the appropriate choice when it comes to directly treating bacterial infections.