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First detection of Leptospira santarosai in the reproductive track of a boar: a potential threat to swine production and public health
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First detection of Leptospira santarosai in the reproductive track of a boar: a potential threat to swine production and public health
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First detection of Leptospira santarosai in the reproductive track of a boar: a potential threat to swine production and public health
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Paper
First detection of Leptospira santarosai in the reproductive track of a boar: a potential threat to swine production and public health
2022
Overview
Background: Leptospirosis causes significant economic losses and is an occupational risk in the swine industry, especially in developing tropical regions where social and geoclimatic conditions are favorable for the transmission of this disease. Although vaccination can reduce infection risk, efficacy is diminished if local genetic and antigenic variants of the pathogen are not accounted for in the vaccine. Identifying and characterizing strains that circulate in different populations is therefore critical for public health mitigation practices. Methodology/Principal findings: Our study was conducted on a rural breeding farm in Ecuador, where we identified, for the first time, Leptospira santarosai in the kidneys, testicles, and ejaculate of a vaccinated boar. L. santarosai was detected with a PCR assay that targets lipL32, and identified by target MLST gene sequencing using an Oxford Nanopore MinION sequencer. Conclusions/Significance: As L. santarosai is pathogenic in other livestock species and humans, our finding highlights the need to evaluate the prevalence and epidemiological significance of this pathogen in pigs. In addition, further studies are needed to identify and characterize local serovars that may impact diagnosis and vaccination programs to better control leptospirosis in pigs and spillover into the human population. Competing Interest Statement The authors have declared no competing interest.
Publisher
Cold Spring Harbor Laboratory Press,Cold Spring Harbor Laboratory
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