Final answer:
Partial-thickness (second-degree) burns damage the epidermis and part of the dermis, and are characterized by blistering and swelling.
Step-by-step explanation:
Partial-thickness (second-degree) burns damage the epidermis and part of the dermis, and are characterized by blistering and swelling. Second-degree burns go deeper than first-degree burns, affecting both the epidermis and a portion of the dermis. These burns result in the formation of painful blisters and swelling of the skin. It is important to keep the burn site clean and sterile to prevent infection.