Defective interfering particles

[T.J. Fitzmaurice]

In article <9411131621.AA03911 at alize.ERE.UMontreal.CA>,
Lemay Guy <lemayg at ERE.UMontreal.CA> wrote:
>
>NB: this is partially responsible for the fact that in most viral stocks 
>the total number of viral particles observed by electron microscopy is 
>much higher than the titer of infectious virus
>
And to add to this, they are exceptionally common in the herpesviruses.
Tim