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The third most frequent agent of perinatal bacterial meningitis is Listeria monocytogenes , in Hungary, its occurrence is, however, uncommon. This raises the possibility of diagnostical mistakes. A connatal listeriosis case validated microbiologically referred to in this report calls attention to Listeria, as a rare but relevant pathogen of neonatal infections. If clinical background suggests infection, the pathogenic role of L. monocytogenes should be taken in consideration. The etiological significance of the agent has to be verified by a competent clinical microbiology laboratory, since maternal listeriosis should be treated and the serious connatal manifestations should be prevented. Epidemiology of perinatal infection by L. monocytogenes , and its diagnostic tools especially the use of selective media are discussed.

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Developments in Health Sciences
Authors: E Burgettiné Böszörményi, S Németh, A Fodor, K Bélafiné Bakó, D Vozik, Z Csima, and I Barcs

Introduction

The prevalence of invasive fungal diseases shows an increasing trend. Due to the frequent but unprofessional usage of antifungal medications, the fungi show decreasing susceptibility towards these agents and this trend may lead to the emergence of resistant pathogens. There is a great need to develop antifungal medications with new mechanisms. One of these options is to apply proteins with natural antifungal effects. The objective was to measure the antifungal efficacy of Xenorhabdus budapestensis in vitro on clinical Candida species (Candida albicans, Candida lusitaniae, Candida krusei, Candida kefyr, Candida tropicalis, and Candida glabrata). Materials and methods: We defined the sensitivity of the Candida species towards antibiotics. We conducted agar diffusion tests with the cleaned biopreparation of X. budapestensis (100%) and its dilutions (80%, 60%, 40%, and 20%). Zones of inhibition were measured after 24, 48, and 96 hr.

Results

Most of the tested Candida species have shown sensitivity to the biopreparation and its 40% dilution. The area of the zones of inhibition did not decrease after several days. The most sensitive species was C. lusitaniae and the least sensitive was C. krusei.

Conclusion

We assume that the proteins produced by X. budapestensis have antifungal effect, as the area of the zones of inhibition did not change.

Open access

The ARTEMIS Global Antifungal Susceptibility Program provides the collection of epidemiological data and the results of the fluconazole and voriconazole susceptibility testing of yeast isolates. Participating in this study, a total of 7318 clinical yeast isolates were tested from different geographical areas in Hungary in the period 2001 to 2003. The species isolated most frequently was C. albicans (68.8%), followed by C. glabrata (11.8%), C. tropicalis (5.7%) and C. krusei (4.6%). Isolates of C. albicans, C. kefyr, C. lusitaniae, C. tropicalis and C. parapsilosis were highly susceptible to fluconazole (78.9-100%). The rates of isolation of fluconazole-resistant C. glabrata and C. krusei were higher in our study than the global mean in 2001 (28.2% and 87.5% vs. 18.3% and 70.2%, respectively). Differences were detected in the distribution of fluconazole-susceptibility data of C. glabrata isolates in the different counties of Hungary: most of the resistant isolates were observed in the eastern part of the country.

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