Which is the Causative Agent in 80% of UTIs

Question

Which is the causative agent in 80% of UTIs
A)Escherichia coli
B)Chlamydia trachomatis
C)Staphylococcus
D)Pseudomonas aeruginosa

Accepted Answer

Escherichia coli is responsible for causing 80% of UTIs. This gram-negative bacterium is commonly found in the gut and can easily contaminate the urinary tract, leading to infection. Chlamydia trachomatis and Staphylococcus are less common causes of UTIs, while Pseudomonas aeruginosa is typically associated with more serious infections in hospitalized patients or those with weakened immune systems.