#11: The novel you're thinking of is "The Galactic Gourmet" by James White, in his Sector General series, published in 1996. http://www.sectorgeneral.com/books/galacticgourmet.html

At the end of last August, I discovered a bat flying around /my/ home. Half-asleep, I reached out... and grabbed it in mid-air. Its teeth happened to touch my skin, so my local public health system told me I had to get the full series of rabies shots, just to be safe. I can't donate blood for a year, but I guess my immune system is ready for any other bats that try to sneak in...

More details at http://datapacrat.livejournal.com/2271.html , if anyone's curious.