The Lyme disease bacterium is passed onto humans directly from
Lyme disease is caused by a bacteria that is passed from insect to human by ticks.It canât be passed directly from human to human. The bacteria is transmitted primarily through deer ticks, either adult female deer ticks or their babies.These little âvampiresâ need to suck our blood to remain alive.yme disease is caused by a bacteria that is passed from insect to human by ticks.