Today I had the pleasure of hosting the visit of Professor Mark Brown to the University of Bristol.
It was great to see Mark but his visit was a hectic blend of food, refreshments and a discussion group with graduate students before treating us to a seminar on his work on bumblebee nematodes.
A. bombi from Argentina and Europe share a common, relatively recent origin. The absence of genetic structure across space and host species suggests that A. bombi may be acting as an emergent infectious disease across bee taxa and continents.