Critically ill patients admitted to intensive care units (ICU) are highly susceptible to healthcare-associated infections caused by fungi. A prospective sequential survey of invasive fungal infections was conducted from May 2006 to April 2008 in 38 ICUs of 27 Italian hospitals. A total of 384 fungal infections (318 invasive Candida infections, three cryptococcosis and 63 mould infections) were notified. The median rate of candidaemia was 10.08 per 1000 admissions. In 15% of cases, the infection was already present at the time of admission to ICU. Seventy-seven percent of Candida infections were diagnosed in surgical patients. Candida albicans was isolated in 60% of cases, Candida glabrata and Candida parapsilosis in 13%, each. Candida glabrata had the highest crude mortality rate (60%). Aspergillus infection was diagnosed in 32 medical and 25 surgical patients. The median rate was 6.31 per 1000 admissions. Corticosteroid treatment was the major host factor. Aspergillosis was demonstrated to be more severe than candidiasis as the crude mortality rate was significantly higher (63% vs. 46%), given an equal index of severity, Simplified Acute Physiology Score (SAPS-II). The present large nationwide survey points out the considerable morbidity and mortality of invasive fungal infections in surgical as well as medical patients in ICU.
Fusarium isolates from 75 Italian patients were identified by molecular methods, and their susceptibilities to antifungals were tested in vitro. Fusarium verticillioides was the species most frequently isolated from deep-seated infections, and F. solani was the species most frequently isolated from superficial infections. F. solani isolates showed high azole MICs, while F. verticillioides isolates showed low posaconazole MICs.
Difficulties in treating animals with conventional drugs and the potent in vitro activity of essential oils demonstrated here raise the interest in further investigations on the therapeutic use of these non-conventional natural products.
This study describes the development and validation of a simplified enzyme-linked immunosorbent assay (ELISA) for the detection and discrimination of foot-and-mouth disease virus (FMDV) serotypes O, A, C and Asia 1. The multiplex ELISA was designed using selected, type-specific monoclonal antibodies (MAbs) coated onto ELISA plates as catching antibodies and a unique pan-FMDV MAb (1F10) as detector conjugate. Capture MAbs with the broadest intratypic reactivity were selected for each of the four FMDV serotypes by screening large panels of candidate MAbs with a wide spectrum of representative FMDV isolates. An additional pan-FMDV ELISA using 1F10 How to cite this article: Grazioli S, Ferris NP, Dho G, et al. Development and validation of a simplified serotyping ELISA based on monoclonal antibodies for the diagnosis of foot-andmouth disease virus serotypes O, A, C and Asia 1.
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