Now in continuation of the story about Lyme disease and focusing on the epidemiology of the disease, the reported cases of Lyme disease in 2014, according to the CDC map is shown over here. Know that in the US Lyme disease is most common in the northeast, the upper Midwest and the Mid Atlantic states. Shown here are the reported cases of the disease represented by blue dots. And this report has been from the CDC from the year 2014. In 2015, about 95 percent of the cases of Lyme disease were reported from these 14 United States. And those are Connecticut, Delaware, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Jersey, Pennsylvania, Rhode Island, Vermont, Virginia and Wisconsin in alphabetic order.

Now regarding the terminology related to Lyme disease, in the sense of epidemiology, as I mentioned before, incidence is the rate of newly diagnosed cases. And these new cases are increasing rapidly. distribution or spread lung disease is also spreading rapidly to neighboring states of those 14 states I had mentioned before, with high incidence that is mainly due to several reasons, but some of the main ones are different stations, forcing the ticks to migrate to other areas and acorns. Yes, especially fresh acorns which are highly favored by the deer population, thus increasing the deer population. Now, let us go over the definition of host. It's the animal in which the tick lives or feeds on and it's usually the deer mouse, and birds.

And humans are of course, the accidental hosts of the thick reservoir. reservoir is the animal in which the infectious bacteria normally lives and multiplies. And it's usually the most vector vector is a carrier and transmitter of the disease in which case it is the tick and We have noticed the habitat for the tick deer is fairing making the study of Lyme disease all the more important at this time.