Your coworker and good friend has just returned from a trip abroad (since he works for the CIA, he can't tell you where he has been). Two days after...

Your coworker and good friend has just returned from a trip abroad (since he works for the CIA, he can't tell you where he has been). Two days after his return, he falls sick with a severe infection. Your job as his friend is to find the best (and most efficient) way to identify what caused the sickness? What molecular diagnostic approach will you use? Once you have identifies the cause, what treatment will you develop and why and how will you do it so your friend is quickly back to normal?