One key difference between bacterial and viral infections is that:

One key difference between bacterial and viral infections is that antibiotics can be used to treat bacterial infections. Bacterial infections are caused by bacteria, which are living organisms that can be killed or inhibited by antibiotics, allowing the body's immune system to effectively eliminate the infection.

In contrast, viral infections are caused by viruses, which are not affected by antibiotics. Antiviral medications are used to manage viral infections, but they function differently than antibiotics and are not effective against all viruses or in all cases.

Understanding this distinction is critical in medical practice, as it influences treatment decisions. Proper use of antibiotics is vital for effective treatment of bacterial infections and helps prevent the development of antibiotic resistance when misused for viral infections.