The reason this matters is that 95% of dissolved organic matter seems to be refractory.

ECONOMIST: Bacteria and climate change: Invisible carbon pumps | The

They therefore suspect the main source of food for AAPB is dissolved organic matter released by phytoplankton.

ECONOMIST: Bacteria and climate change: Invisible carbon pumps | The

It probably does not matter if some silk gets into a vaccine when it is dissolved in water prior to inoculation.

ECONOMIST: Monitor