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US Department of Agriculture

USDA leads the Federal anti-hunger effort with the Food Stamp, School Lunch, School Breakfast, and the WIC Programs. USDA is responsible for the safety of meat, poultry, and egg products. USDA is a research leader in everything from human nutrition to new crop technologies that allow us to grow more food and fiber using less […]

USDA

US Department of Agriculture.

USFDA

Protecting the public health by assuring that foods (except for meat from livestock, poultry and some egg products which are regulated by the U.S. Department of Agriculture) are safe, wholesome, sanitary and properly labeled; ensuring that human and veterinary drugs, and vaccines and other biological products and medical devices intended for human use are safe […]

Uvulopalatopharyngoplasty

A type of operation designed to tighten up flabby tissues and enlarge the upper air passages. The operation involves reshaping the uvula (uvulo-), soft palate (-palato-) and throat (-pharyngo-). The uvula is a small piece of soft tissue that can be seen dangling down from the soft palate over the back of the tongue. The […]

Uvulitis

Inflammation of the uvula. Uvulitis has many causes, including infection with a virus, fungus, or bacteria or the result of a side effect of a medication.

Uvula

The anatomic structure that dangles downward at the back of the mouth and is attached to the rear of the soft palate.

Uveitis

Inflammation of the uvea. Uveitis is a serious form of eye inflammation and requires aggressive treatment with medications to reduce the inflammation that can permanently impair vision. Uveitis can occur by itself or as a feature of an underlying disease, such as Behcet’s disease, sarcoidosis, and others.

Uvea

An inner layer of the eye that includes the iris, the blood vessels that serve the eye (choroid), and the connective tissue between the iris and the choroid (the ciliary body).

UV radiation

Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays — ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC). UVC is the most dangerous type of ultraviolet light but cannot […]

Utility

In the analysis of health outcomes, a number between 0 and 1 that is assigned to a state of health or an outcome. Perfect health has a utility value of 1. Death has a utility value of 0.

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