Why is a sore throat caused by bacteria usually considered more serious than one caused by a virus?

A sore throat caused by bacteria, such as streptococcal pharyngitis (commonly known as strep throat), is deemed more serious than a viral sore throat primarily due to its potential for more severe complications. Bacterial infections can lead to a range of health issues if left untreated, including rheumatic fever, which can damage the heart, and post-streptococcal glomerulonephritis, which can impact kidney function. These complications require prompt medical attention and sometimes more aggressive treatment options, including antibiotics to prevent worsening conditions.

In contrast, viral sore throats are generally self-limiting and less likely to cause severe health issues. They often resolve on their own without the need for medical intervention or specific treatments, which indicates that they pose a lower risk of complications than bacterial infections. Therefore, the focus on the higher chance of complications associated with bacterial sore throats emphasizes the need for careful assessment and management in clinical practice.