You are informed that a viral solution has 5,000 virions per milliliter and that LD50 is 2,500 virions.You infect a population of test animals with 0.5 ml doses,and observe that only 5% of the test subjects die.Which method of viral counting was NOT employed in providing your information?

Question

Quizplus · Accepted Answer

Plaque or cell culture analysis measures infectious virions, which would align with the LD50 data. The discrepancy between the expected mortality rate and observed mortality suggests that the method used did not account for infectious virions, indicating that plaque or cell culture analysis was not employed.

You Are Informed That a Viral Solution Has 5,000 Virions