Human papillomaviruses
摘要
Panel 9. Human papillomaviruses, observed here by negative staining, represent another family of DNA viruses with a small genome packed into a small spherical capsid (about 1/50000th of a millimeter). But these are much more concerning than the viruses mentioned so far, constituting a real public health problem. While most infections by these viruses give no symptoms, some indeed evolve into cancers.