Which assertion is true about signs of infection?

The correct assertion highlights that swelling often accompanies redness in infections. When an area of the body becomes infected, the immune response triggers various physiological changes. This response includes increased blood flow to the affected area, which often results in redness, and the accumulation of fluid and immune cells, leading to swelling. This combination of symptoms is a classic sign of inflammation, which is the body’s natural response to infection or injury.

Swelling and redness together form part of the hallmark signs of inflammation caused by infection, demonstrating that the body is actively fighting off the invading pathogens. Understanding these signs is crucial for recognizing infections early and determining the appropriate intervention needed to manage them effectively.