Isolation method

As Medlab told Kerry that they couldn't identify what species the Campylobacters and Yersinia they're going to send are, I'll have to identify them by myself. As with this issue, I had a talk with Ray. According to Ray, commercial isolation systems (a.k.a. "kit") are not cost-friendly; traditional biochemical methods are time, effort and budget consuming. The latter is also hard to judge the results. To his mind, PCR would be the best choice (he said because he likes simple yes/no results). Hmm, PCR...that means I'll have to handle nucletide things again.