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[Phagotypes of the Salmonella paratyphi B strains isolated in Czechoslovakia 1986-1991]
1Ustav preventívnej a klinickej medicíny, Bratislava.
Abstract:
The author presents an account of phagotypes of 70 strains of Salmonella paratyphi B isolated in 1986-1991 incl., from patients suffering from typhus B and registered carriers, isolates from river water and also from three new cases of carriers in Czechoslovakia. These isolated strains were sent for typing of Salmonellae to a Bratislava department for phagotyping. According to lytic findings with standard bacteriophages the strains were classified into 8 types. Another group is formed by strains which cannot be typed in the critical dilution (RTD) nor in its tenfold concentration (19.1%). During the investigation period the subtype 3aI (38.3%) and the phage type Taunton (21.9%) were most frequent.
Insights
This study characterized Salmonella paratyphi B strains using phage typing, identifying 8 distinct types. Subtype 3aI and phage type Taunton were the most prevalent among clinical and environmental isolates.
Area of Science:
- Microbiology
- Bacteriology
- Epidemiology
Context:
- Phage typing of Salmonella paratyphi B strains is crucial for epidemiological surveillance.
- The study analyzed 70 Salmonella paratyphi B isolates from diverse sources between 1986-1991.
- Isolates included clinical samples from typhus B patients, registered carriers, and environmental river water samples.
Purpose:
- To determine the phage types of Salmonella paratyphi B strains isolated in Czechoslovakia.
- To classify strains based on their reaction to standard bacteriophages and identify prevalent types.
- To investigate the distribution of phage types in clinical and environmental settings.
Summary:
- Seventy strains of Salmonella paratyphi B were subjected to phage typing.
- The strains were classified into 8 distinct types based on lytic patterns with standard bacteriophages.
- A significant proportion of strains (19.1%) were resistant to typing at critical dilutions.
- Subtype 3aI (38.3%) and phage type Taunton (21.9%) were the most frequently identified types during the study period.
Impact:
- Provides valuable data on the phage typing profiles of Salmonella paratyphi B in a specific geographic region and time frame.
- Contributes to understanding the epidemiology and transmission dynamics of Salmonella paratyphi B.
- Highlights the importance of continuous phage typing for monitoring bacterial populations and public health.