What do you call an organism that causes disease?

What do you call an organism that causes disease?

• A. Pathogen
• B. Bacteria
• C. Virus
• D. Fungus

Answer: (A)

An organism that causes disease is called a pathogen. A pathogen is any living or nonliving agent capable of causing illness in a host, and it includes a range of types such as bacteria, viruses, fungi, and other disease-causing agents. The specific terms bacteria, virus, and fungus describe particular kinds of pathogens, but the general term that covers all of them is pathogen. Some bacteria and fungi, for example, aren’t harmful and may even be beneficial, but when they cause disease, they’re pathogens. This is why pathogen is the best answer.

An organism that causes disease is called a pathogen. A pathogen is any living or nonliving agent capable of causing illness in a host, and it includes a range of types such as bacteria, viruses, fungi, and other disease-causing agents. The specific terms bacteria, virus, and fungus describe particular kinds of pathogens, but the general term that covers all of them is pathogen. Some bacteria and fungi, for example, aren’t harmful and may even be beneficial, but when they cause disease, they’re pathogens. This is why pathogen is the best answer.