Final answer:
Septicemia is a blood infection caused by bacteria or germs and can lead to sepsis.
Step-by-step explanation:
The condition that is a blood infection is septicemia.
Septicemia, also known as blood poisoning, is a serious condition caused by the presence of bacteria or other germs in the blood. It can lead to sepsis, a life-threatening condition that can cause organ failure.
Unlike thalassemia, hemophilia, and leukemia, which are blood disorders, septicemia specifically refers to an infection in the bloodstream.