If scientists want to find out how fast a population of bacteria grows, they often measure how their cell count changes over time. However, this method has a major flaw: it does not measure how fast ...

The H1N1 flu, or swine flu, continues to cause illness, hospitalizations and deaths worldwide. The virus was first detected in humans in the United States in April. Since then, the virus continues to ...

Seawater is full of bacteria, hundreds of thousands live in every liter. But the sheer number of bacteria living in the water does not necessarily mean a lot. More important is how active they are and ...