pyelonephritis is usually caused by which type of organism
Pyelonephritis It is typically due to a bacterial infection, most commonly Escherichia coli.[2] Risk factors include sexual intercourse, prior urinary tract infections, diabetes, structural problems of the urinary tract, and spermicide use.[2][3] The mechanism of infection is usually spread up the urinary tract.[2] Less often infection occurs through the bloodstream.[1] Diagnosis is typically based on symptoms and supported by urinalysis.[2] If there is no improvement with treatment, medical imaging may be recommended.[2]
Wastewater If the wastewater contains human feces, as is the case for sewage, then it may also contain pathogens of one of the four types:[2][3]
Ascaris lumbricoides Infections with these parasites are more common where sanitation is poor,[10] and raw human feces are used as fertilizer.
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.