Introduction: leptospirosis is a zoonosis of worldwide importance. The disease is endemic in Brazil. This study was conducted to describe the clinical and laboratory presentation of leptospirosis in a metropolitan city of Brazil.
Methods: this is a retrospective study including 201 consecutive patients with leptospirosis admitted to tertiary hospitals in Fortaleza, Brazil, between 1985 and 2006. All patients had clinical and epidemiological data suggestive of leptospirosis, and positive laboratorial test for leptospirosis (microscopic agglutination test, MAT, higher than 1:800).
Results: a total of 201 patients were included, with mean age of 38.9 + or - 15.7 years; 79.1% were male. The mean length from onset of symptoms to admission was 7 + or - 3 days. The main clinical signs and symptoms at admission were fever (96.5%), jaundice (94.5%), myalgia (92.5%), headache (74.6%), vomiting (71.6%) and dehydration (63.5%). Hemorrhagic manifestations were present in 35.8%. Acute kidney injury was found in 87% of the patients. Platelet count was less than 100,000/mm(3) in 74.3%. Hematuria was found in 42.9%. Death occurred in 31 cases (15.4%).
Conclusions: leptospirosis is a globally relevant disease with potential fatal outcome. Signs and symptoms suggestive of leptospirosis must be known by any physician in order to institute early adequate treatment to improve outcome. Early indication and daily hemodialysis seems to be beneficial in this group of patients.
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Cureus
November 2024
Internal Medicine, Corewell Health, Royal Oak, USA.
Leptospirosis, an infection caused by the spirochete Leptospira and commonly attributed to the underdeveloped world, is frequently under-diagnosed in the United States. This report discusses the case of a 79-year-old male with no significant medical history who presented to the ED with recurrent falls. Initial laboratory results demonstrated severe acute kidney injury, hyperbilirubinemia, and thrombocytopenia.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Faculty of Veterinary Medicine, Federal University of Uberlândia, Uberlândia, 38402-018, Brazil.
Silver nanoparticles are recognized for potent antimicrobial properties against pathogenic bacteria, crucial in addressing the severity of leptospirosis, where an ideal treatment is lacking. This study focuses on assessing the antimicrobial efficacy of silver-doped zinc oxide nanoparticles (ZnO:9Ag) on standard Leptospira spp. strains (six species and ten serovars).
View Article and Find Full Text PDFFront Cell Infect Microbiol
December 2024
Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil.
Pathogenic are spirochetes that cause leptospirosis, a worldwide zoonotic disease. Leptospirosis affects humans and animals, with approximately 1 million human infections and 60,000 deaths per year. The diversity of leptospiral strains and serovars allied to the fact that pathogenesis is not yet fully understood, make the development of an effective vaccine against leptospirosis a challenge.
View Article and Find Full Text PDFPLoS One
December 2024
International Vaccine Institute, Seoul, Republic of Korea.
The involvement of Toll-like receptor 2 (TLR2) in leptospirosis is poorly understood. Our systematic review examined its role across in-vitro, in-vivo, ex-vivo, and human studies. Original articles published in English up to January 2024, exploring the role of TLR2 during leptospirosis, were selected from databases including PubMed, Web of Science, Scopus, Trip, and Google Scholar.
View Article and Find Full Text PDFTrop Med Infect Dis
November 2024
Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Viale dell'Università 10, 35020 Legnaro, Italy.
Leptospirosis is a widespread disease throughout the world, presenting in severe clinical forms in dogs. The pathogenicity of the different serovars in field infections is not fully documented, and clinical diagnosis is often limited to a combination of serological tests and molecular analyses. The latter, although a fundamental tool, cannot identify the infecting strain without further analysis.
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