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| virus | family/genus | genome type | structure | shape | genome size (kb) | virion size (nm) |
|---|---|---|---|---|---|---|
| SARS-CoV-2 | coronaviridae | + ssRNA | enveloped | spherical | 30 | 50–140 |
| RSV | pneumoviridae | – ssRNA | enveloped | spherical | 15 | 150–250 |
| rhinovirus | picornavirus | + ssRNA | nonenveloped | icosahedral | 7 | 15–30 |
| MS2 | leviviridae | + ssRNA | nonenveloped | icosahedral | 3.6 | 23–28 |
