Flu season is approaching! Oscillococcinum is a homeopathic medicine that is advertised as relieving flu symptoms. It is produced by starting with duck liver and heart, and diluting them to "200C". This means that they are diluted to 1 part per hundred, and then this is repeated 200 times. (Thus, after two dilutions, the ratio is 1 in 104; after three, the ratio is 1 in 106, and so on all the way to 200.)