Answer:
antibiotics
Step-by-step explanation:
Antibiotics are ineffective against viruses because antibiotics target bacteria, not viruses. Antibiotics work by disrupting the growth and function of bacterial cells, which have distinct structures and processes that differ from viruses. Viruses are much smaller and are not considered living organisms; they rely on host cells to replicate. Since antibiotics do not affect viruses, they should not be used to treat viral infections like the common cold or influenza. Instead, antiviral medications are used to combat viral infections by targeting specific aspects of the viral life cycle.