Researchers have discovered that large numbers of North American cats carry antibodies for the disease (meaning that the cats have been infected at some point in their lives).
They are widespread across the wilderness areas of North America.
The Coryphondon widespread in North America between 59 and 51 million years ago The Coryphondon widespread in North America between 59 and 51 million years ago
These beetles are fairly widespread throughout North America.
By the 1850s, hemp had become the third largest agricultural crop grown in North America.
disease
Lyme disease is a problem worldwide. It is the most common vector-borne disease in Europe and North America.
There are two species of bison. One is found in North America. The other, which is called a wisent, only lives in Europe. The wisent used to be more widespread, and live in part of Asia, not just Europe.
dutch elm disease
The most common form of premature death in North America is heart disease. All forms of cancer are the second leading cause.
It is a widespread plant native to Europe and the temperate regions of Asia and an introduced plant into North America, Australia and New Zealand
Infectious mononucleosis (also known as EBV infectious mononucleosis or Pfeiffer's disease and colloquially as kissing disease - from its oral distribution - or as mono in North America and as glandular fever in other English-speaking countries) is an infectious, very widespread viral disease caused by the Epstein-Barr virus, which well over 90% of all adults are exposed to at some point in their life.http://en.wikipedia.org/wiki/Infectious_mononucleosis
There was more than just one disease transferred to the aboriginals of north America when European settlers arrived, but a disease that caused a lot of trouble was smallpox.