Today we had a special talk by Prof. Day, who works in the field of molecular biology. In particular, he focused on blood tests that reveal whether or not somebody has a certain disease or condition, like HIV or pregnancy. He talked about recent technology that has sped up the process as well as the different styles employed by companies that perform these tests. In addition, he brought a sample that a brave volunteer (go Joshua!) was able to test before our eyes to reveal the presence (and lack thereof) of a variety of diseases and conditions.

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