background: helicobacter pylori is the cause of serious diseases including gastric cancer and gastric mucosa–associated lymphoid tissue lymphoma.50% of world population is infected by this microorganism and it -based on epidemiologic studies - is mainly acquired during childhood . there is not enough evidence about prevalence of this infection in children and its risk factors so encourage us to...

Cystic fibrosis (CF) is a disease produced by a defect in the transmembrane conductance regulator protein, CFTR. Currently, the morbidity and mortality associated with CF are fundamentally related with the lung affectation that is a consequence of this defect. With the progression of the disease, there is an increase in the isolation of non-fermenting gram-negative bacilli colonizing these pati...

OBJECTIVE To search for evidence of the efficiency of sodium hypochlorite on environmental surfaces in reducing contamination and prevention of healthcare-associated infection HAIs. METHOD Systematic review in accordance with the Cochrane Collaboration. RESULTS We analyzed 14 studies, all controlled trials, published between 1989-2013. Most studies resulted in inhibition of microorganism gr...

In apparent contrast to its invasive potential Staphylococcus aureus colonizes the anterior nares of 20-80% of the human population. The relationship between host and microbe appears particularly individualized and colonization status seems somehow predetermined. After decolonization, persistent carriers often become re-colonized with their prior S. aureus strain, whereas non-carriers resist ex...

The occurrence of Legionella spp. in the water distribution systems large hospitals and other healthcare facilities is considered particularly dangerous, due to critical nature hospitalized patients. aim this study present a pluri-annual environmental surveillance university hospital assessing prevalence underlining its variability over years. samples were collected accordance with Italian Nati...

Helicobacter (H.) heilmannii sensu stricto (s.s.) is a zoonotic bacterium that naturally colonizes the stomach of dogs and cats. In humans, this microorganism has been associated with gastritis, peptic ulcer disease and mucosa associated lymphoid tissue (MALT) lymphoma. Little information is available about the pathogenesis of H. heilmannii s.s. infections in humans and it is unknown whether di...

Arbuscular mycorrhizal (AM) fungi are well known symbiotic microorganism found to improve the growth of host plant by mobilizing immobile nutrients, mainly phosphorus, from soil. However, effect AM on depends percentage colonization, whereas it is not clear that percent mycorrhization impacts fungal spore abundance inoculum. Therefore, current investigation was conducted know Glomus intraradice...

The aim of the present study was to describe the beneficial health effects of probiotic bacteria, manifested by inhibition of growth of pathogen microorganism strains and that of their colonization of the gastrointestinal tract of humans. The primordial mode of action by which a probiotic eradicates a pathogen can be facilitated by the production of antimicrobial substances such as bacteriocins...

OBJECTIVE to evaluate the prevalence of Staphylococcus aureus nasal colonization in renal transplant patients and to identify the related risk factors. METHOD Swabs were used to collect nasal samples from 160 patients who had undergone a transplant within the previous year at the Kidney and Hypertension Hospital. The 'National Committee for Clinical Laboratory Standards' norms were followed f...