Microbial Population Biology

Open access blog network of courses focused on the population biology of bacteria and viruses

Why are some parasites so virulent and others so mild?

April 9th, 2009 · 2 Comments · General

Gang,

A reminder that, by next Tuesday, you are to find an article on the evolution of virulence that addresses this question using “population thinking.”  This means not the mechanisms that underlie one strain’s methods of being virulent, but rather why various alternatives exist, or how they interplay with variation among hosts, etc.

I look forward to your diverse findings on your blogs.

VC

2 Comments so far ↓

  • shana

    Hi Vaughn,

    just a couple questions on the lab report.

    1.a) Plot the mean of each replicate of your two strains as OD vs time.– can you just clear this up for me a little–

    Also I understood how to calculate the AUC, but what do these tell me?

    Also can I get rid of one of my replicates because it is obviously an outlier in the data..

    thanks!
    Shana
    ( I can also send an email, but I thought other students might have the same questions)

  • Vaughn

    Hi Shana — got your email but glad you posted. See below; I’ve updated the assignment. But regarding the plot, just create a scatter plot, connected by lines, of OD600 over time for each of your 4 experimental replicates.

    And yes, you can delete one of your replicates if it’s an outlier but you must justify it in your report.

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