The Term Blind Passage in Virology

The term blind passage in virology

A) refers to a technique that is less frequently used today because of the added time and expense involved.
B) describes a technique that is used to detect viruses that may not produce cytopathic effects (CPE) in the initial culture tube but will when the "beefed-up" inoculum is passed to a second tube.
C) describes a technique that can be used to dilute toxicity and thus prevent ambiguous CPE caused by toxicity.
D) describes a technique that is performed by scraping the monolayer off the sides of the tube and inoculating 0.25 mL of the resulting suspension into a new cell culture.
E) All of the above are correct.

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