Bunyaviruses are a group of viruses belonging to the family Bunyaviridae. They are primarily transmitted to humans through the bites of infected arthropods, such as mosquitoes and ticks. These viruses can cause various diseases, including Crimean-Congo hemorrhagic fever and Hantavirus pulmonary syndrome, which can lead to severe health complications. The structure of bunyaviruses includes a segmented RNA genome, which allows for genetic reassortment. They are found in many regions around the world, often associated with specific ecological environments. Understanding bunyaviruses is crucial for developing vaccines and treatments to prevent outbreaks and protect public health.