While its toxic effects can be damaging, the sensing of lipid A by the human immune system may also be critical for the onset of immune responses to gram-negative infection, and for the subsequent successful fight against the infection.
Waterloo County is located in South-Western Ontario. Waterloo County was created in 1838 from Townships from Halton and Simcoe and part of Indian lands. Prior to 1840 Waterloo County was part of Halton County, Simcoe District. The county seat was Berlin (now known as Kitchener).
There is another Town of Waterloo in Grant County. Waterloo is a town in Jefferson County in the U.S. state of Wisconsin. The population was 909 at the 2010 census. The city of Waterloo is located within the town. The unincorporated community of Portland is also located partially in the town.