Coronavirus-infected cells sprout filaments that may spread the virus
Tiny projections may serve as highways to new cells to infect
![Coronavirus-infected cell with filopodia](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/07/071620_ja_filopodia_feat.jpg?fit=1028%2C579&ssl=1)
Coronavirus-infected cells can produce more and longer spindly projections called filopodia than normal uninfected cells. Viral particles (colored green in this electron microscopy image of a monkey cell) can bud from these protrusions and possibly infect other cells.
Elizabeth Fischer/NIAID/NIH