Bacterial Endotoxin. Â© Kenneth Todar, PhD. Endotoxins are part of the outer membrane of the cell wall of Gram-negative bacteria. Endotoxin is invariably associated with Gram-negative bacteria whether the organisms are pathogenic or not.
â¢ A WorldWeb.com Travel Guide to Airlines in Winston-Salem, NC, North Carolina. Listings. American Airlines. With world headquarters in Dallas, Texas, American Airlines and its commuter subsidiary American Eagles provide service to North America and throughout the world. American is a member of the One World Alliance.
With four long runways and some 43 million passengers annually, Charlotte Douglas International Airport is currently US Airways' largest hub (operating out of Concourses C, D & E), and is served by a host of major airlines offering direct and connecting flights througout North America, the Caribbean islands, Europe & South America.