Another example of scientific progress involves a natural bacterium known as Bt.

VOA: special.2009.10.27

Bt is a bacterium that was discovered in the early twentieth century.

VOA: special.2010.05.25

Researchers can produce a genetic map of a bacterium or virus.

VOA: special.2010.06.29

They also identified the bacterium that causes Buruli ulcer.

VOA: special.2009.04.06