What is Lyme disease, and how is it diagnosed?

Lyme disease is caused by infection with a bacterium known as Borrelia. This parasite can travel through the bloodstream to many parts of our bodies, triggering immune responses and thus a range of symptoms, including skin rashes, fevers, potentially even neurological damage, and more. So how does it get into humans in the first place? James Tytko asked Jack Lambert, professor and consultant in infectious diseases at the Mater Misericordiae University Hospital at University College Dublin...