Streptococcus agalactiae is a well-known pathogen during pregnancy and in neonates. Among non-pregnant adults, invasive infection, although rare, is showing increasing frequency, especially in chronically ill, immunosuppressed, or older patients. Although rare, the clinical features of meningeal infection caused by S. agalactiae are similar to other bacterial meningitis. The authors report the case of a middle-aged man previously diagnosed with hypertension, diabetes mellitus, and alcoholic liver cirrhosis, who was admitted at the emergency department with a Glasgow Coma Scale of 11/12, generalized spasticity, bilateral Babinski sign, and hypertension. The clinical outcome was bad, with refractory shock and death within 24 hours of hospitalization. The bacteriological work-up isolated S. agalactiae in the cerebral spinal fluid (CSF), blood, and urine. An autopsy revealed meningoencephalitis, acute myocardial infarction, and pyelonephritis due to septic emboli. The authors point out the atypical CSF findings, the rapid fatal outcome, and the importance of including this pathogen among the etiologic possibilities of invasive infections in this group of patients.
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http://dx.doi.org/10.4322/acr.2015.028 | DOI Listing |
Background: Group B streptococcus (GBS) causes neonatal invasive disease, mainly sepsis and meningitis. Understanding the clinical characteristics, laboratory tests, and antibiotic resistance patterns of GBS invasive infections provides reliable epidemiological data for preventing and treating GBS infections.
Methods: Clinical characteristics and laboratory test results from 86 patients with neonatal invasive disease (45 cases of early-onset disease [EOD] and 41 cases of late-onset disease [LOD]) recruited from Fujian Maternity and Child Health Hospital between January 2012 and December 2021 were analyzed.
Fish Shellfish Immunol
January 2025
Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai, 519082, China. Electronic address:
Acanthopagrus latus (yellowfin seabream) is an economically important fish in the southeast coastal sea of China. Its slower growth rate makes it more prone to diseases in the cultivation period, leading to substantial economic losses. Epidemiological investigations have indicated that Streptococcus agalactiae is one of the most common Gram-positive pathogens, which have garnered increasing attention due to its high contagion and lethality rates in A.
View Article and Find Full Text PDFIntern Med J
January 2025
Department of Infectious Diseases, Fiona Stanley Fremantle Hospitals Group, Perth, Western Australia, Australia.
Background: Neonatal and puerperal sepsis are major manifestations of invasive group B streptococcal (Streptococcus agalactiae; iGBS) infections. International data indicate the importance of iGBS infections among non-pregnant adults.
Aims: To describe the burden of iGBS infections in Western Australia (WA) between 2000 and 2018 in terms of incidence, length of hospitalisation and all-cause 30- and 90-day mortality.
Microorganisms
November 2024
Department of Preventive Veterinary Medicine, School of Veterinary Medicine, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil.
Nile tilapia () and tambaqui () are the two most produced freshwater fishes in Brazil. This study investigated the potential pathogenicity of and , previously isolated from diseased Nile tilapia, to tambaqui. Experimental infection trials were conducted in juvenile tambaqui at a dose of approximately 10 CFU fish, assessing clinical signs, mortality, bacterial recovery, and histopathological changes.
View Article and Find Full Text PDFMicroorganisms
November 2024
Department of Preventive Veterinary Medicine, Veterinary School, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil.
is an important pathogen responsible for cases of high mortality in farmed and wild fish worldwide. In Brazil, this bacterium has been commonly associated with outbreaks in Nile tilapia farms, but other native fish species are also susceptible. Since floating cages are one of the most common culture systems used in the country, the close contact between farmed tilapia and native fish species presents a risk concerning the transmission of this pathogen.
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