Laurie Krug on Roseoloviruses like HHV-6
"Roseolovirus cytopathic effect is striking. Anyone who has witnessed the ballooning, refractile cells upon infection will wonder at the power of these viruses to cause such fundamental change in target cells." http://www.sciencedirect.com/science/article/pii/S1879625714002065/pdfft?md5=4a3de2d23a10d477d7cb0eadbf4c6ed6&pid=1-s2.0-S1879625714002065-main.pdf