I know, but I would expect doctors would, by know, not be so frequently surprised by things lurking in their own bodies.

Not that long ago a never before observed structure every human always had was discovered: https://www.science.org/content/article/scientists-say-they-...

Doctors don't ask about this. People still take Prilosec, and it's acknowledged that it causes cancer. You get what you give: confirmation bias.

Edit: The essential problem is that ranitidine isn't shelf-stable. This could explain some problems with other theraputics which we won't name to avoid downvoting / politics.

I would imagine it was a known (or new) virus that would be identified if we had the time and resources. With so much money in pharmaceutical applications I am surprised there is still unsequenced DNA.

Would be easier to catch oiled seals while blindfolded, in the rain.