The biological activity of endotoxin is associated with the lipopolysaccharide (LPS). Toxicity is associated with the lipid component (Lipid A) and immunogenicity is associated with the polysaccharide components. The cell wall antigens (O antigens) of Gram-negative bacteria are components of LPS.
New summer destination added to Harrisburg International Airport flights. Allegiant Air will begin offering nonstop flights from the Harrisburg International Airport to Myrtle Beach, S.C. for as low as $45 beginning this summer. HIA Executive Director Timothy Edwards announced Tuesday that summer seasonal routes to Myrtle Beach will operate twice weekly beginning May 19. The discount airline will now offer flights to four locations â including Punta Gorda, Orlando and Tampa.
Singapore Airlines used to operate the two of the longest flights in the world, both are direct flights from Singapore to Los Angeles and Newark, using the Airbus A340-500 aircraft.onstop service to Los Angeles was terminated on 20 October 2013 (the airline continues to serve Los Angeles from Singapore via Tokyo-Narita) and nonstop service to Newark was terminated on 23 November 2013 in favour of the Singapore-New York JFK route via Frankfurt.