(redirected from salmonellas)
Also found in: Dictionary, Thesaurus, Medical, Financial.


A genus of gram-negative, facultatively anaerobic bacteria belonging to the family Enterobacteriaceae that cause enteric infections with or without blood invasion. Most species are motile, utilize citrate, decarboxylate ornithine, form gas from glucose, and produce hydrogen sulfide. Salmonellae do not ferment lactose, produce indole, or split urea; the Voges-Proskauer reaction is negative.



a genus of nonsporogenous rod-shaped bacteria that are 1–7 μm long and approximately 0.3–0.7 μm wide. It includes gram-negative facultative aerobes, most of which are motile because they are peritrichous. Salmonella was named in honor of the American pathologist D. E. Salmon (1850–1914).

Salmonellas form round grayish white colonies on solid nutrient mediums and an opacity and sediment and sometimes a film when grown in broth. They ferment carbohydrates, including glucose, mannose, xylose, and dextrin, and alcohols, including inositol and dulcite; an acid and sometimes a gas are formed as well.

Salmonellas generally inhabit the intestine of animals and man. Most belong to pathogenic species that produce various antigens, including the thermolabile flagellate H antigen and the O and V antigens, which consist of carbohydrates. There are more than 20 species in the genus, with more than 1,200 serotypes that differ in antigenic structure and biochemical properties. Among salmonellas are the causative agents of typhoid fever and paratyphoid in humans and salmonelloses in humans and animals.


References in periodicals archive ?
All food and human origin Salmonella were isolated on Hecktoen solid media after a double selective enrichment in Selenite F broth (SFB).
The MICs of Salmonella isolates were determined according to EUCAST guidelines for the micro dilution method (EUCAST, 2013).
An Agglomerative Hierarchical Clustering (AHC) was applied for determining relationships between isolated Salmonella strains according to their behavior towards the different antimicrobial tested drugs (MIC profile), which were grouped according to Pearson correlation coefficient similarities based on Ward's aggregation method.
Public veterinary medicine: Public health education on Salmonella spp and reptiles.
Isolation of Salmonella strains from reptile faeces and comparison of difference culture media.
Salmonella enterica in reptiles of German and Austrian origin.
En algunos paises, incluyendo el Peru, se viene usando el control biologico a traves de la bacteria Salmonella enterica, sub especie enterica, serovar Enteritidis, var.
En el calculo del tamano muestral se considero informacion de experimentos previos donde se evaluo el peso corporal de aves inoculadas experimentalmente con Salmonella sp.
El grupo A fue alimentado con el producto raticida (Biorat[R]) para control biologico (20% de la racion) en el 5, 6 y 7 dia de edad, el grupo B fue inoculado directamente en el buche al 8 dia de edad con un cultivo de la bacteria Salmonella enterica, subespecie enterica, serotipo Enteritidis, var.