@phil What was the most difficult experiment, into finding out about an infection, that you have done in the lab?

Question: @phil What was the most difficult experiment, into finding out about an infection, that you have done in the lab?
- Keywords:
  disease,
  research
Asked by hcosby295 to Jen, Jill, Mel, Phil, Stef on 18 Mar 2013.
- Phil Rice answered on 18 Mar 2013:
  
  Thanks, that’s a very good question. Unfortunately, I am still doing the most difficult experiments to prove or disprove my theory about chickenpox virus evolution. If these experiments fail to disprove my idea, or support it, then another series of even more difficult experiments will follow where I will try and swap sections of viral DNA between the two main type of chickenpox virus to see which bits of DNA are responsible for the differences between them. Thanks.

Question: @phil What was the most difficult experiment, into finding out about an infection, that you have done in the lab?