A virologist is a medical professional who studies a variety of diseases and viruses that could impact animals, fungi, natural environments, humans or insects. Many virologists diagnose and study different viral infections to determine ways to prevent them from reoccurring. They might work in colleges or academic institutions to teach students about the medical subjects they study, or they can advise medical team members in different government or health departments on ways to handle certain outbreaks or infections impacting communities.

They regularly conduct research and report findings on different viruses like Ebola, rubella, HIV or chicken pox. Some virologists may work solely in an academic or research settings. Others may pursue physician roles, so that they can use the information found in their studies to treat and cure patients. They may also use this knowledge to develop innovative antiviral medications or vaccinations.