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Some experiments measured the effect of particular chemicals on the infectivity of lytic phages in terms of influence on the PFU/mL counts.

For example, the reduction of PFU/mL of exposed phages over controls might be 2 logs (let's say from 1000 PFU/mL in controls to 10 PFU/mL in exposed). If I knew the infection rate of the control phage (let's say 1), how can I calculate the infection rate of the exposed phages?

Thank you

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  • $\begingroup$ I think you have a few problems here - first off would be that it should be PFU (plaque forming units); as CFU is for bacterial colony forming units. Second, assuming a standard concentration of bacteria, what do you think is measured by the PFU/ml? $\endgroup$
    – bob1
    Apr 13, 2023 at 20:56
  • $\begingroup$ Thank you, yes I have mistaken CFU with PFU, I have corrected the post. $\endgroup$
    – Gigiux
    Apr 15, 2023 at 5:09

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