Asymptomatic carrier

As Dauerausscheider a person is designated, the employee leaves after infection by pathogens (bacteria, viruses) even after a 10-week period continue to reproduce this even without the occurrence of disease symptoms or after the resolution of symptoms and. It follows for varying periods of time (permanent / temporary duration of excretion ) a risk of infection through contact with saliva, urine, stool and other body fluids of Dauerausscheiders.

Have a special epidemiological significance here the causative agent of salmonella: Salmonella ( S. ) enterica, S. typhi and S. paratyphi. In diseases of typhoid and paratyphoid 1-4 % of recovered healthy divorce (usually those over 50 years), the causative agent for more than 6 months, and thus usually lifelong further. For the renovation of Dauerausscheidern is ciprofloxacin or ceftriaxone recommended for Dauerausscheidern with a Cholecystolithiasis cholecystectomy under antibiotic screening.

Unusual caused a stir in the U.S. tabloids Mary Mallon ( Typhoid Mary ), which was infected with typhoid fever, but not sick of it.