Which division of microbiology focuses on the study of protozoa?

The division of microbiology that concentrates specifically on the study of protozoa is protozoology. This field involves examining the biology, classification, behavior, and ecology of protozoa, which are unicellular eukaryotic organisms. Protozoologists explore various aspects of these organisms, including their life cycles, interactions with other organisms, and their roles in disease and ecological systems.

The other fields listed pertain to different groups of microorganisms. Virulogy focuses on viruses, their structure, function, and the diseases they cause. Bacteriology is dedicated to the study of bacteria, covering aspects such as their physiology, genetics, and impact on humans and the environment. Mycology studies fungi, which encompasses yeasts, molds, and mushrooms, investigating their biology, uses in industry, and roles in health and disease. Each of these divisions is specialized and distinct in its focus, making protozoology the correct answer for the study of protozoa.