All general practitioners of the 6 primary care centers will be included in our clinical trial, excepting paediatricians. Data collection will be performed on patients attended in these centres. Inclusion and exclusion criteria will be applied on the patients attended by general practitioners:  Inclusion criteria:  Patients older than 14 years old diagnosed with respiratory infections: pharyngoamygdalitis, sinusitis and otitis. Patients older than 14 years old diagnosed with urinary tract infections: cystitis, prostatitis and pyelonephritis.  Exclusion criteria:  Patients less than 14 years old. Patients with indwelling urinary catheter. Patients with congenital urinary tract abnormalities.