What is a common effect of a bacterial infection in the body?

A common effect of a bacterial infection in the body is inflammation and pus formation. When bacteria invade the body, the immune system responds by increasing blood flow to the affected area, leading to inflammation. This response is aimed at containing the infection and facilitating the healing process. The immune cells that are attracted to the site of infection can cause redness, warmth, swelling, and pain, which are hallmarks of inflammation.

Pus formation occurs as a result of the accumulation of dead immune cells, bacteria, and tissue debris at the infection site. This is the body's way of isolating and attempting to clear out the pathogens. Therefore, the presence of inflammation and pus is a clear indicator of a bacterial infection, highlighting the immune response to eliminate harmful bacteria.