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Although it is estimated that 20-30% of the general human population are carriers of Staphylococcus aureus, this bacterium is one of the most important etiological agents responsible for healthcare-associated infections. The appearance of methicillin resistant S. aureus (MRSA) strains has created serious therapeutical problems. Detailed understanding of the mechanisms of S. aureus infections seems...
The Helicobacter pylori infections are followed by an infiltration of the gastric mucosa by neutrophils and macrophages. Accumulation of phagocytes enables them to interact with H. pylori, but a great number of infected subjects cannot eradicate these bacteria. The H. pylori inhibits its own uptake by blocking the function of phagocytes. The anti-phagocytic mechanism depends on bacterial surface structures...
Gallibacterium spp. is a new genus of the family Pasteurellaceae. These Gram-negative rods are a part of the physiological flora of the upper respiratory tract, genital tract and gastrointestinal tract of birds and have been found in different species of domestic and wild birds. They are opportunistic pathogens that were isolated from birds with pathological lesions or conditions. This paper presents...
Bacteria from genera Chlamydia (Ch.) and Chlamydophila (Chi.) are very pathogenic and may infect humans and animals. They also may cause latent infection, especially in animals. In this paper we discuss the non-specific and specific cellular and humoral immunity in farm animals, after infection or immunisation with Chlamydia sp. and Chlamydophila sp. bacteria. It has been shown, that the infection...
The pathogenesis of stomach cells can be associated with their susceptibility to exogenous dietary irritants, like nitrosamines such as dimethylnitrosamines (DMNA), and to the effects of non-dietary factors, including Helicobacter pylori infection. We used N-methyl-N'-nitro N-nitrosoguanidyne (MNNG) as a surrogate agent that induces a spectrum of DNA damage similar to DMNA. Using the alkaline comet...
The incidence of extended-spectrum β-lactamases (ESBLs) was analyzed in Enterobacteriaceae population circulating in the Upper Silesian Child and Mother Health Center in Katowice (USC&MHC). Altogether 1164 clinical specimens, collected from children hospitalized in 8 different hospital units of USC&MHC were investigated. Five hundred and eighty-five clinical isolates of the family Enterobacteriaceae...
The goal of the experiment was to evaluate the Boviseptivac vaccine against cattle pasteurellosis manufactured from local isolates of P. multocida serotype B:2 with the addition of an oil adjuvant (Emulsigen). Field examinations were performed on 645 cows in the Ostroleka province. The vaccine effectively protected against the disease; however, 6 (93%) of examined cows revealed shock signs which were...
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