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Review
. 2022 Aug 3;9(8):405.
doi: 10.3390/vetsci9080405.

Emergence, Dissemination and Antimicrobial Resistance of the Main Poultry-Associated Salmonella Serovars in Brazil

Diéssy Kipper  1 , Andréa Karoline Mascitti  1 , Silvia De Carli  2 , Andressa Matos Carneiro  1 , André Felipe Streck  1 , André Salvador Kazantzi Fonseca  3 , Nilo Ikuta  3 , Vagner Ricardo Lunge  1   2   3
Affiliations
Review

Emergence, Dissemination and Antimicrobial Resistance of the Main Poultry-Associated Salmonella Serovars in Brazil

Diéssy Kipper et al. Vet Sci. .

Abstract

Salmonella infects poultry, and it is also a human foodborne pathogen. This bacterial genus is classified into several serovars/lineages, some of them showing high antimicrobial resistance (AMR). The ease of Salmonella transmission in farms, slaughterhouses, and eggs industries has made controlling it a real challenge in the poultry-production chains. This review describes the emergence, dissemination, and AMR of the main Salmonella serovars and lineages detected in Brazilian poultry. It is reported that few serovars emerged and have been more widely disseminated in breeders, broilers, and layers in the last 70 years. Salmonella Gallinarum was the first to spread on the farms, remaining as a concerning poultry pathogen. Salmonella Typhimurium and Enteritidis were also largely detected in poultry and foods (eggs, chicken, turkey), being associated with several human foodborne outbreaks. Salmonella Heidelberg and Minnesota have been more widely spread in recent years, resulting in frequent chicken/turkey meat contamination. A few more serovars (Infantis, Newport, Hadar, Senftenberg, Schwarzengrund, and Mbandaka, among others) were also detected, but less frequently and usually in specific poultry-production regions. AMR has been identified in most isolates, highlighting multi-drug resistance in specific poultry lineages from the serovars Typhimurium, Heidelberg, and Minnesota. Epidemiological studies are necessary to trace and control this pathogen in Brazilian commercial poultry production chains.

Keywords: Brazil; Enteritidis; Gallinarum; Heidelberg; Minnesota; Salmonella; Typhimurium; antimicrobial resistance; poultry.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Main sources of contamination and transmission of the Salmonella serovars frequently detected in the Brazilian poultry production chain.
Figure 2
Figure 2
Timeline of the emergence and dissemination of the main Salmonella serovars in Brazilian poultry-production chain.
See this image and copyright information in PMC

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