Enumeration of an Extremely High Particle-to-PFU Ratio for Varicella-Zoster Virus

被引:60
作者
Carpenter, John E. [1 ]
Henderson, Ernesto P. [1 ]
Grose, Charles [1 ]
机构
[1] Univ Iowa, Cent Microscopy Res Facil, Iowa City, IA 52242 USA
关键词
HUMAN-MELANOMA CELLS; GLYCOPROTEIN C; EGRESS; ALPHAHERPESVIRUSES; TEGUMENT; VZV;
D O I
10.1128/JVI.00081-09
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Varicella-zoster virus (VZV) is renowned for its low titers. Yet investigations to explore the low infectivity are hampered by the fact that the VZV particle-to-PFU ratio has never been determined with precision. Herein, we accomplish that task by applying newer imaging technology. More than 300 images were taken of VZV-infected cells on 4 different samples at high magnification. We enumerated the total number of viral particles within 25 cm(2) of the infected monolayer at 415 million. Based on these numbers, the VZV particle:PFU ratio was approximately 40,000:1 for a cell-free inoculum.
引用
收藏
页码:6917 / 6921
页数:5
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