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Salmonellosis in Austria: situation and trends
Christian Kornschober1, Claudia Mikula, Burkhard Springer
1Institute of Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety (AGES), National Reference Laboratory/Center for Salmonella, Graz, Austria. christian.kornschober@ages.at
Wiener Klinische Wochenschrift
|March 13, 2009
Summary
Austria
Area of Science:
- Veterinary Medicine
- Public Health
- Microbiology
Background:
- Non-typhoidal Salmonella spp. cause widespread human gastroenteritis, often zoonotic.
- An ongoing salmonellosis epidemic in Austria since 1989 is linked to Salmonella Enteritidis in poultry.
- Poultry, especially eggs, are a significant source of Salmonella Enteritidis transmission.
Purpose of the Study:
- To evaluate the impact of control measures on Salmonella Enteritidis infections in Austria.
- To analyze trends in human Salmonella isolates and antibiotic resistance.
- To assess the effectiveness of vaccination and outbreak investigations.
Main Methods:
- Monitoring of human Salmonella isolates at the National Reference Center for Salmonella (NRCS).
- Analysis of infection data from 1989 onwards.
- Assessment of antibiotic resistance patterns.
Main Results:
- Vaccination of poultry and intensified investigations led to a >50% reduction in human Salmonella isolates since 2002.
- Salmonella Enteritidis was the primary driver of the epidemic.
- Antibiotic resistance rates, including to ciprofloxacin and cefotaxime, remain low and stable.
Conclusions:
- Control measures, including poultry vaccination, significantly reduced human salmonellosis in Austria.
- Sustained surveillance and intervention are crucial for managing zoonotic diseases.
- Low antibiotic resistance is a positive outcome, but continued monitoring is essential.
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