The AIDS Committee of Toronto (A.C.T.) commissioned me to create illustrations for it to use in its publications, pamphlets and safer sex inserts. I enjoyed researching the fascinating creepy-crawlies which are directly observable with an electron microscope. I imagined what ghastly colours they might be if they weren't too small to have colours.

I drew easily reproducible line drawings to demonstrate how use a condom, or a femmidom, or a dam...  if you give a damn.

The existing models and illustrations for these things came with strict ownership and copyright, or at least the liability of potential legal entanglements with regard to their use.   The images I created A.C.T. itself clearly owns - or it may have made them explicitly public domain, you'd have to ask.
 

This is an electron microscope photograph of Hep-A virus. Even these relatively "large" viruses are smaller than a single wavelength of light and so can have no colour.  If you're going to get hepatitis, this is the one to get. Hep-A won't kill you even if it makes you turn yellow and feel like death for a couple of weeks.   Once you've had it you're immune for life.

Many can fully recover from Hep-B too, though some never do.  That being said, there are inoculations for both Hep-A and Hep-B so save yourself the misery and talk to your doctor. Hep-C is altogether more permanasty and there is no vaccine, but you can take pecautions and not become a vector.

Damn!