But when a sore throat persists and you can't find relief, it's something to be taken seriously. Some possible causes of a chronic sore throat include: 1  Tonsillitis (infection of the tonsils). 2  Strep throat. 3  Allergies. 4  Mononucleosis (also referred to as mono).5  Inhaling air pollutants. 6  Smoking. 7  Influenza (the flu). 8  Inhaling through the mouth instead of the nose.ut when a sore throat persists and you can't find relief, it's something to be taken seriously. Some possible causes of a chronic sore throat include: 1  Tonsillitis (infection of the tonsils). 2  Strep throat. 3  Allergies. 4  Mononucleosis (also referred to as mono).
Canada CanÂ·aÂ·da (kÄnâ²É-dÉ) A country of northern North America. The original inhabitants of the region include the Inuit and First Nations. European colonists arrived in eastern Canada in the early 1600s, and the area was claimed by the French and then ceded (1763) to the English after the Seven Years' War.
For the athletic association, see Canada West Universities Athletic Association. The United Province of Canada, or the Province of Canada, or the United Canadas was a British colony in North America from 1841 to 1867. Its formation reflected recommendations made by John Lambton, 1st Earl of Durham in the Report on the Affairs of British North America following the Rebellions of 1837â38.