sleeping sickness

Within high-density lipids are proteins, apolipoproteins to be exact, that bind to fats to aid transport and assist in metabolism. One of them, apolipoprotein L1 (APOL 1), is a ubiquitous but relatively minor player in fat transport.

In some instances, it was unintentional; in other cases, we ate them down to a protected species. The current plight of the Koala draws our concern; the end of the poliovirus, not so much.