Irritable bowel syndrome Irritable bowel syndrome is a common condition that causes painful spasms and cramping in the large intestine. Ectopic pregnancy An ectopic pregnancy can be life-threatening and causes severe pain, dizziness, fainting, and vaginal bleeding.
These organisms (for example, bacteria such as E. coli or Pseudomonas) infect the urinary tract by relocating against the flow of urine (retrograde) toward the kidneys. Lower urinary tract infections do not involve the kidneys while upper urinary tract infections involve the kidneys and are typically more severe.These types of infections of the urinary tract are almost never contagious to other individuals.ower urinary tract infections do not involve the kidneys while upper urinary tract infections involve the kidneys and are typically more severe. These types of infections of the urinary tract are almost never contagious to other individuals.
The purpose of this article is to analyze a large and widely scattered body of data that addresses this question, focusing on common respiratory tract infections that are spread from person to person. Some respiratory tract infections are not at all contagious and will not be included. For example, histoplasmosis and coccidioidomycosis are caused by dimorphic fungi that need to replicate outside the human host in order to evolve into an infectious form.