Starting March 15, 2016, visa-exempt foreign nationals who fly to or transit through Canada will need an Electronic Travel Authorization (eTA). Exceptions include U.S. citizens and travellers with a valid visa.Read about the changes and how they may affect you.ind out what you need to visit Canada as a tourist or business person, how to extend your stay in Canada and what documents you need to carry with you to transit through Canada.
Normally, urine that contains a lot of water has little to no odor. If your urine becomes highly concentrated â a high level of waste products with little water â urine odor may have a strong ammonia smell. Many foods and medications, such as asparagus or certain vitamins, can affect the odor of urine. Sometimes, unusual urine odor may indicate a medical condition or disease, such as: Bladder infection.
Most of the time, urine does not have a strong smell if you are healthy and drink plenty of fluids. Most changes in urine odor are not a sign of disease and go away in time. Some foods and medicines, including vitamins, may affect your urine's odor. For example, eating asparagus causes a distinct urine odor. Foul-smelling urine may be due to bacteria. Sweet-smelling urine may be a sign of uncontrolled diabetes or a rare disease of metabolism. Liver disease and certain metabolic disorders may cause musty-smelling urine. Some conditions that can cause changes in urine odor include: Bladder fistula.