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5. The Many Faces of E. Faecium: From Probiotics to Pathogenesis

Author

Daza-Prieto, Beatriz, Cabal-Rosel, Adriana, Raicevic, Nadja, Stoeger, Anna, Ladstaetter, Johann, Mach, Robert L., Ruppitsch, Werner, Martinovic, Aleksandra, Magjarević, Ratko, Series Editor, Ładyżyński, Piotr, Associate Editor, Ibrahim, Fatimah, Associate Editor, Lackovic, Igor, Associate Editor, Rock, Emilio Sacristan, Associate Editor, Badnjević, Almir, editor, and Gurbeta Pokvić, Lejla, editor

Published
2024
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11. Radiation dose fractionation and its potential hormetic effects on male Glossina palpalis gambiensis (Diptera: Glossinidae): a comparative study of reproductive and flight quality parameters

Author

Kaboré Bénéwendé Aristide, Taqi Syeda Dua, Mkinga Athumani, Morales Zambrana Anibal E, Mach Robert L, Vreysen Marc JB, and de Beer Chantel J

Subjects
tsetse pupae, gamma-ray irradiation, sterility, flight propensity, sterile insect technique, Infectious and parasitic diseases, RC109-216
Abstract

One of the most critical factors for implementing the sterile insect technique for the management of tsetse is the production of large quantities of highly competitive sterile males in the field. Several factors may influence the biological quality of sterile males, but optimizing the irradiation protocols to limit unwanted somatic cell damage could improve male performance. This study evaluated the effect of fractionation of gamma radiation doses on the fertility and flight quality of male Glossina palpalis gambiensis. Induced sterility was assessed by mating irradiated males with virgin fertile females. Flight quality was assessed using a standard protocol. The male flies were irradiated as pupae on day 23–27 post larviposition with 110 Gy, either in a single dose or in fractionations of 10 + 100 Gy and 50 + 60 Gy separated by 1-, 2- and 3-day intervals or 55 + 55 Gy separated by 4-, 8-, and 24-hour intervals. All treatments induced more than 90% sterility in females mated with irradiated males, as compared with untreated males. No significant differences were found in emergence rate or flight propensity between fractionated and single radiation doses, nor between the types of fractionations. Overall, the 50(D0) + 60(D1) Gy dose showed slightly higher induced sterility, flight propensity, and survival of males under feeding regime. Dose fractionation resulted in only small improvements with respect to flight propensity and survival, and this should be traded off with the required increase in labor that dose fractionation entails, especially in larger control programs.

Published
2024
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14. Prevalence of Trypanosoma and Sodalis in wild populations of tsetse flies and their impact on sterile insect technique programmes for tsetse eradication

Author

Dieng, Mouhamadou M., Dera, Kiswend-sida M., Moyaba, Percy, Ouedraogo, Gisele M. S., Demirbas-Uzel, Guler, Gstöttenmayer, Fabian, Mulandane, Fernando C., Neves, Luis, Mdluli, Sihle, Rayaisse, Jean-Baptiste, Belem, Adrien M. G., Pagabeleguem, Soumaïla, de Beer, Chantel J., Parker, Andrew G., Van Den Abbeele, Jan, Mach, Robert L., Vreysen, Marc J. B., and Abd-Alla, Adly M. M.

Published
2022
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19. Elucidating fecal pollution patterns in alluvial water resources by linking standard fecal indicator bacteria to river connectivity and genetic microbial source tracking

Author

Frick, Christina, Vierheilig, Julia, Nadiotis-Tsaka, Theodossia, Ixenmaier, Simone, Linke, Rita, Reischer, Georg H., Komma, Jürgen, Kirschner, Alexander K.T., Mach, Robert L., Savio, Domenico, Seidl, Dagmar, Blaschke, Alfred P., Sommer, Regina, Derx, Julia, and Farnleitner, Andreas H.

Published
2020
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20. Enterococcus montenegrensis sp. nov., isolated from artisanal Montenegrin dry sausage

Author

Daza-Prieto, Beatriz, primary, Raicevic, Nadja, additional, Cabal, Adriana, additional, Hyden, Patrick, additional, Mösenbacher, Tobias, additional, Ladstätter, Johann, additional, Richter, Susanne, additional, Stöger, Anna, additional, Joao Cardoso, Maria, additional, Chakeri, Ali, additional, Hasenberger, Petra, additional, Stadlbauer, Silke, additional, Mach, Robert L., additional, Martinovic, Aleksandra, additional, and Ruppitsch, Werner, additional

Published
2024
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21. Correction Notice to: Development and characterization of microsatellite markers for the tsetse species Glossina brevipalpis and preliminary population genetics analyses

Author

Gstöttenmayer Fabian, Moyaba Percy, Rodriguez Montse, Mulandane Fernando C., Mucache Hermógenes N., Neves Luis, De Beer Chantel, Ravel Sophie, De Meeûs Thierry, Mach Robert L., Vreysen Marc J. B., and Abd-Alla Adly M.M.

Subjects
Infectious and parasitic diseases, RC109-216
Published
2023
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22. Prevalence of Spiroplasma and interaction with wild Glossina tachinoides microbiota

Author

Dera Kiswend-Sida M, Dieng Mouhamadou M, Moyaba Percy, Ouedraogo Gisele MS, Pagabeleguem Soumaïla, Njokou Flobert, Ngambia Freitas François S, de Beer Chantel J, Mach Robert L, Vreysen Marc JB, and Abd-Alla Adly MM

Subjects
trypanosoma spp., microbe infection rate, interactions, paratransgenesis, Infectious and parasitic diseases, RC109-216
Abstract

Tsetse flies (Diptera: Glossinidae) are vectors of the tropical neglected diseases sleeping sickness in humans and nagana in animals. The elimination of these diseases is linked to control of the vector. The sterile insect technique (SIT) is an environment-friendly method that has been shown to be effective when applied in an area-wide integrated pest management approach. However, as irradiated males conserve their vectorial competence, there is the potential risk of trypanosome transmission with their release in the field. Analyzing the interaction between the tsetse fly and its microbiota, and between different microbiota and the trypanosome, might provide important information to enhance the fly’s resistance to trypanosome infection. This study on the prevalence of Spiroplasma in wild populations of seven tsetse species from East, West, Central and Southern Africa showed that Spiroplasma is present only in Glossina fuscipes fuscipes and Glossina tachinoides. In G. tachinoides, a significant deviation from independence in co-infection with Spiroplasma and Trypanosoma spp. was observed. Moreover, Spiroplasma infections seem to significantly reduce the density of the trypanosomes, suggesting that Spiroplasma might enhance tsetse fly’s refractoriness to the trypanosome infections. This finding might be useful to reduce risks associated with the release of sterile males during SIT implementation in trypanosome endemic areas.

Published
2023
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23. Development and characterization of microsatellite markers for the tsetse species Glossina brevipalpis and preliminary population genetics analyses

Author

Gstöttenmayer Fabian, Moyaba Percy, Rodriguez Montse, Mulandane Fernando C., Mucache Hermógenes N., Neves Luis, De Beer Chantel, Ravel Sophie, De Meeûs Thierry, Mach Robert L., Vreysen Marc J. B., and Abd-Alla Adly M.M.

Subjects
glossina, tsetse, microsatellites, population genetics, south africa, mozambique, Infectious and parasitic diseases, RC109-216
Abstract

Tsetse flies, the vectors of African trypanosomes are of key medical and economic importance and one of the constraints for the development of Africa. Tsetse fly control is one of the most effective and sustainable strategies used for controlling the disease. Knowledge about population structure and level of gene flow between neighbouring populations of the target vector is of high importance to develop appropriate strategies for implementing effective management programmes. Microsatellites are commonly used to identify population structure and assess dispersal of the target populations and have been developed for several tsetse species but were lacking for Glossina brevipalpis. In this study, we screened the genome of G. brevipalpis to search for suitable microsatellite markers and nine were found to be efficient enough to distinguish between different tsetse populations. The availability of these novel microsatellite loci will help to better understand the population biology of G. brevipalpis and to assess the level of gene flow between different populations. Such information will help with the development of appropriate strategies to implement the sterile insect technique (SIT) in the framework of an area-wide integrated pest management (AW-IPM) approach to manage tsetse populations and ultimately address the trypanosomoses problem in these targeted areas.

Published
2023
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27. Multicenter Study of Cronobacter sakazakii Infections in Humans, Europe, 2017

Author

Lepuschitz, Sarah, Ruppitsch, Werner, Pekard-Amenitsch, Shiva, Forsythe, Stephen J., Cormican, Martin, Mach, Robert L., Pierard, Denis, and Allerberger, Franz

Subjects
Mass spectrometry -- Health aspects, Ionization -- Health aspects, Infection -- Health aspects, Genomes -- Health aspects, Cephalothin -- Health aspects, Medical research -- Health aspects, Genomics -- Health aspects, Microbial drug resistance -- Health aspects, DNA sequencing, Newborn infants, Spectroscopy, Drug resistance, Health, World Health Organization
Abstract

Cronobacter sakazakii is a motile, gram-negative, rodshaped opportunistic pathogen of the family Enterbacteriaceae (1). In 2007, organisms previously classified as Enterobacter sakazakii were reassigned to the new genus Cronobacter, which [...]

Published
2019
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36. Microbiological Water Quality of the Danube River: Status Quo and Future Perspectives

Author

Kirschner, Alexander K. T., Kavka, Gerhard, Reischer, Georg H., Sommer, Regina, Blaschke, A. Paul, Stevenson, Margaret, Vierheilig, Julia, Mach, Robert L., Farnleitner, Andreas H., Barceló, Damià, Editor-in-chief, Kostianoy, Andrey G., Editor-in-chief, Liska, Igor, editor, Aggarwal, P. K., Book Editor, Araguás, L. J. A., Book Editor, Baumgartner, A., Book Editor, Blaschke, A. P., Book Editor, Brauch, H.-J., Book Editor, Christoph, E. H., Book Editor, Csányi, B., Book Editor, Dokulil, M. T., Book Editor, Farnleitner, A. H., Book Editor, Graf, W., Book Editor, Habersack, H., Book Editor, Hamchevici, C., Book Editor, Hauer, C., Book Editor, Hlubikova, D., Book Editor, Hofmann, T., Book Editor, Huber, T., Book Editor, Hudcová, H., Book Editor, Jäger, E., Book Editor, Janauer, G. A., Book Editor, Kavka, G., Book Editor, Kirschner, A. K. T., Book Editor, Kováč, V., Book Editor, Leitner, P., Book Editor, László, F., Book Editor, Liska, I., Book Editor, Literathy, P., Book Editor, Makovinska, J., Book Editor, Mariani, G., Book Editor, Maringer, F. J., Book Editor, Mach, R. L., Book Editor, Micić, V., Book Editor, Müller, A., Book Editor, Newman, B. D., Book Editor, Papesch, W., Book Editor, Paunović, M., Book Editor, Pletterbauer, F., Book Editor, Popovici, M., Book Editor, Rank, D., Book Editor, Rauchbüchl, A., Book Editor, Reischer, G. H., Book Editor, Sacher, F., Book Editor, Scheidleder, A., Book Editor, Schmidt, B., Book Editor, Schmidt-Mumm, U., Book Editor, Schwarz, U., Book Editor, Seidel, C., Book Editor, Simonović, P., Book Editor, Skejo, H., Book Editor, Slobodnik, J., Book Editor, Sommer, R., Book Editor, Storck, F. R., Book Editor, Stevenson, M., Book Editor, Stietka, M., Book Editor, Udrea, I., Book Editor, Umlauf, G., Book Editor, van Gils, J., Book Editor, Vierheilig, J., Book Editor, Vitvar, T., Book Editor, von der Ohe, P. C., Book Editor, Wagner, F., Book Editor, Wollgast, J., Book Editor, and Zorić, K., Book Editor

Published
2015
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39. Suitability of raycell MK2 blood X-ray irradiator for the use in the sterile insect technique: Dose response in fruit flies, tsetse flies and mosquitoes

Author

Yamada, Hanano, Kaboré, Bénéwendé Aristide, Bimbilé Somda, Nanwintoum Séverin, Ntoyi, Nonhlanhla L., de Beer, Chantel Janet, Bouyer, Jérémy, Caceres-Barrios, Carlos, Mach, Robert L., Gómez-Simuta, Yeudiel, Yamada, Hanano, Kaboré, Bénéwendé Aristide, Bimbilé Somda, Nanwintoum Séverin, Ntoyi, Nonhlanhla L., de Beer, Chantel Janet, Bouyer, Jérémy, Caceres-Barrios, Carlos, Mach, Robert L., and Gómez-Simuta, Yeudiel

Abstract

The sterile insect technique (SIT) is based on the inundatory field release of a target pest following their reproductive sterilization via exposure to radiation. Until recently, gamma irradiation from isotopic sources has been the most widely used in SIT programs. As isotopic sources are becoming increasingly expensive, especially for small programs, and regulations surrounding their procurement and shipment increasingly strict, irradiation capacity is one of the limiting factors in smaller or newly developing SIT projects. For this reason, the possibility of using X-ray irradiators has been evaluated in the recent decade. The availability of “off-the-shelf” blood X-ray irradiators that meet the technical requirements for insect irradiation can provide irradiation capacity for those SIT projects in which the acquisition of gamma ray irradiators is not feasible. Following the recent technical characterization of a Raycell MK2 X-ray blood irradiator, it was found in this study, that MK2 instruments were suitable for the sterilization of fruit flies, tsetse flies and mosquitoes, inducing comparable, even slightly higher, sterility levels compared to those achieved by gamma ray irradiation. This, together with its estimated processing efficiency, shows that MK2 irradiators are suitable for small- to mid-sized SIT programs.

Published
2023

43. Suitability of Raycell MK2 Blood X-ray Irradiator for the Use in the Sterile Insect Technique: Dose Response in Fruit Flies, Tsetse Flies and Mosquitoes

Author

Yamada, Hanano, primary, Kaboré, Bénéwendé Aristide, additional, Bimbilé Somda, Nanwintoum Séverin, additional, Ntoyi, Nonhlanhla L., additional, de Beer, Chantel Janet, additional, Bouyer, Jérémy, additional, Caceres, Carlos, additional, Mach, Robert L., additional, and Gómez-Simuta, Yeudiel, additional

Published
2023
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