How large is the hantavirus?

Hantaviruses are relatively small viruses, typically measuring about 80 to 120 nanometers in diameter. They belong to the family Hantaviridae and have a segmented, single-stranded RNA genome. The size of the entire viral particle is significantly smaller than many other viruses, making them difficult to detect and study. Their compact structure is part of what allows them to effectively infect host cells.