Hello! I am currently working on my thesis and I wanna run some statistical tests to eventually found the p value and better support my data; it's an experimental study, there are cells infected with a virus, the viral load is assessed and then another cell group is treated with a pharmacological compound, to obtain a new viral load. In the end, viral loads are expressed as logarithms, so there would be a reference value, and one after the intervention, for different viral concentrations. Which is the best test that would work, based on the experience of somebody who is more trained? Thank you!