Volume 13, Number 3—March 2007
Research
In Vitro Cell Culture Infectivity Assay for Human Noroviruses
Figure 1
![Light and transmission electron micrographs of uninfected and infected tissue aggregates with a combined stock of noroviruses representing 3 strains (Passage 0 [P0]). A) Uninfected tissue aggregates displaying well-formed microvilli. B) Infected tissue aggregates exhibiting vacuolization and shortening of the microvilli. C) Transmission electron microscopy (TEM) at 1 h postinfection showing possible norovirus in a microvillus. D) TEM at 24 h postinfection showing significant vacuolization, and i](/eid/images/06-0549-F1.jpg)
Figure 1. Light and transmission electron micrographs of uninfected and infected tissue aggregates with a combined stock of noroviruses representing 3 strains (Passage 0 [P0]). A) Uninfected tissue aggregates displaying well-formed microvilli. B) Infected tissue aggregates exhibiting vacuolization and shortening of the microvilli. C) Transmission electron microscopy (TEM) at 1 h postinfection showing possible norovirus in a microvillus. D) TEM at 24 h postinfection showing significant vacuolization, and internal membrane rearrangement. E) TEM at 66 h postinfection showing accumulation of suspect norovirus particles.
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