Action on Infected Sites says "Not Applicable"

Hi,

When I tried was going through a report of the Infected Sites, I found "Not Applicable" in the action field.

I went through other action fields in the article : https://support.symantec.com/en_US/article.TECH102052.html ; but I could not find the meaning of the action Not Applicable.

I also went through one thread which had a similar question, but that was remain unanswered.

The link for that thread is: https://www.symantec.com/connect/forums/av-action-taken-not-applicable !

I wanted to know the meaning of this action.