Virus particle size

Virus particles vary significantly in size depending on the type of virus. For instance, an average viral particle, like the one associated with the SARS-CoV-2 virus, is around 80 nanometers in diameter. These particles have surface spikes, often modeled and observed to number between 5,000 to 100 spikes on a single virion 1.

Additionally, the spread and understanding of viruses like COVID-19 involve complexities beyond size. Transmission largely occurs through the air via droplets of various sizes. Bigger droplets quickly fall to the ground, while smaller ones can travel further but may contain fewer viruses, influencing their infectivity 2.