A case of Acanthamoeba rhinorrhea in a 32 years female, who was recently recovered from COVID-19 infectionat a tertiary care institute in India. Though, there was no standard treatment protocol for management of amoebic-meningo encephalitis. The patient was managed successfully with combination therapy of amphotericin B and miltefosine. Agents having trophicidal and cysticidal activities are used for treatment of CNS Acanthamoeba infection. COVID 19 infection, steroid therapy anddiabetes mellitus which lead to low immunitywere found to be associated contributing factors.
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http://dx.doi.org/10.1016/j.ijmmb.2022.09.014 | DOI Listing |
Transpl Infect Dis
December 2024
Transplant Infectious Diseases, Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, NIAID, NIH, Bethesda, Maryland, USA.
We report a case of Acanthamoeba infection in an HCT recipient with steroid-refractory GVHD. We highlight the multiple challenges that free-living ameba infections present to the clinician, the clinical laboratory, transplant infectious disease for review, hospital epidemiology if nosocomial transmission is considered, and public health officials, as exposure source identification can be a significant challenge. Transplant physicians should include Acanthamoeba infections in their differential diagnosis of a patient with skin, sinus, lung, and/or brain involvement.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
The proliferation and chlorine resistance of pathogenic bacteria in drinking water distribution systems (DWDSs) pose a serious threat to human health. In this study, the synergistic effects of ozonation pretreatment and trace phosphate on water quality health risk and microbial stability were investigated in the small-scale DWDSs simulated by biofilms annular reactors with cast iron coupons. The results indicated that ozonation of drinking water containing trace phosphate was equivalent to increasing microbial carbon and phosphorus sources, further leading to the rapid proliferation of opportunistic pathogens (OPs) in subsequent DWDSs.
View Article and Find Full Text PDFFEMS Microbiol Ecol
December 2024
Université de Poitiers, Laboratoire Ecologie et Biologie des Interactions, UMR Centre National de la Recherche Scientifique 7267, Equipe Microorganismes, Hôtes, Environnement Poitiers, France.
Free-living amoebae (FLA) are described as environmental reservoirs for some bacteria able to resist their phagocytosis. In the environment, the fate of Mycobacterium bovis (Mbo) and Mycobacterium avium subsp. paratuberculosis (Map), responsible for bovine tuberculosis and paratuberculosis respectively, remains poorly understood and is considered potentially problematic in the eradication and control of these diseases.
View Article and Find Full Text PDFMicrobiol Spectr
December 2024
Laboratório de Bioquímica e Imunologia das Micoses, Departamento de Microbiologia e Parasitologia, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.
Unlabelled: is an emerging fungal pathogen notable for its resistance to multiple antifungals and ability to survive in various environments. Understanding the interactions between and environmental protozoa, such as could provide insights into fungal adaptability and pathogenicity. Two isolates (MMC1 and MMC2) were co-cultured with to examine interaction dynamics, survival, stress responses, growth, virulence, biofilm formation, and antifungal susceptibility.
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