At least 30 of these viruses can be sexually transmitted. HPV transmission occurs easily among sexual partners. This is evidenced by the fact that at least 50 percent of sexually active men and women acquire a genital HPV infection at some point in their lives.
A farm worker corrals cranberries in a bog during a harvest. Every schoolchild learns that the Pilgrims couldn't have survived life in the New World without the help of the Indians. The tribes taught them which crops to plant. They introduced them to corn and other nutritional mainstays. One of these, the American cranberry, is still part of the classic Thanksgiving feast.
Corn is authentically American. A member of the grass family, it was first domesticated from a wild grain several thousand years ago by Aztec and Mayan Indians in Mexico and Central America. The first corn was a loose-podded variety that looked like the seed head at the top of wheat stalks.