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Title: Proliferative growth of SARS coronavirus in Vero E6 cells
Authors: Ng, M.-L. 
Tan, S.-H.
See, E.-E.
Ooi, E.-E. 
Ling, A.-E.
Issue Date: Dec-2003
Citation: Ng, M.-L., Tan, S.-H., See, E.-E., Ooi, E.-E., Ling, A.-E. (2003-12). Proliferative growth of SARS coronavirus in Vero E6 cells. Journal of General Virology 84 (12) : 3291-3303. ScholarBank@NUS Repository.
Abstract: An isolate of SARS coronavirus (strain 2003VA2774) was obtained from a patient and used to infect Vero E6 cells. The replication cycle of the virus was followed from 1 to 30 h post-infection (p.i.). It was surprising to observe the swift growth of this human virus in Vero cells. Within the first hour of infection, the most obvious ultrastructural change was the proliferation of the Golgi complexes and related vesicles accompanied by swelling of some of the trans-Golgi sacs. Extracellular virus particles were present by 5 h p.i. in about 5 % of the cells and this increased dramatically to about 30 % of the cell population within an hour (6 h p.i.). Swollen Golgi sacs contained virus nucleocapsids at different stages of maturation. These virus precursors were also in large vacuoles and in close association with membrane whorls. The membrane whorls could be the replication complexes, since they appeared rather early in the replication cycle. As infection progressed from 12 to 21 h p.i., the cytoplasm of the infected cells was filled with numerous large, smooth-membraned vacuoles containing a mixture of mature virus and spherical cores. Several of these vacuoles were close to the cell periphery, ready to export out the mature progeny virus particles via exocytosis. By 24 to 30 h p.i., crystalline arrays of the extracellular virus particles were seen commonly at the cell surface.
Source Title: Journal of General Virology
ISSN: 00221317
DOI: 10.1099/vir.0.19505-0
Appears in Collections:Staff Publications

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