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Pathogenic microorganisms related to human visits in Altamira Cave, Spain
Published in Cesareo Saiz-Jimenez, The Conservation of Subterranean Cultural Heritage, 2014
V. Jurado, L. Laiz, S. Sanchez-Moral, C. Saiz-Jimenez
Among the class Gammaproteobacteria, Stenotrophomonas maltophilia is an emerging multidrug-resistant global opportunistic pathogen. The increasing incidence of nosocomial and community-acquired S. maltophilia infections is of particular concern for immunocompromised individuals, as this bacterial pathogen is associated with a significant fatality/case ratio (Brooke 2012).
Detection of multidrug resistant environmental isolates of acinetobacter and Stenotrophomonas maltophilia: a possible threat for community acquired infections?
Published in Journal of Environmental Science and Health, Part A, 2020
Reshme Govender, Isaac D Amoah, Sheena Kumari, Faizal Bux, Thor A Stenström
The emergence and spread of antibiotic resistant bacteria and genes in the aquatic environment are a major public health concern globally. In developing countries, such as South Africa where waterborne diseases occur frequently, there is the need for enhanced measures in reducing the risks associated with the environmental presence of infectious pathogens. Some of these measures could be improved monitoring of the occurrence and concentration of these contaminants in water. Infection with waterborne diseases is mainly due to either direct, accidental, or intentional exposure, where lack of potable water or use of contaminated water are a major route of transmission.[1] Indirect exposure could be through the consumption of food prepared with contaminated water. Direct exposure is however central for the organisms that are part of this study: Acinetobacter spp.[2] and Stenotrophomonas maltophilia[3] which can be life threatening especially among immunocompromised individuals and other vulnerable groups. Due to the health challenges associated with antibiotic resistant bacteria infections, the South African Antimicrobial Resistance Strategy framework[4] was developed to combat the spread of antibiotic resistance. The current study focuses on two important bacteria associated with nosocomial infections (Acinetobacter spp. and S. maltophilia), with reports of antibiotic resistance.
Isolation and characterization of novel bacterial strain present in a lab scale hybrid UASB reactor treating distillery spent wash
Published in Environmental Technology, 2019
The performance of hybrid UASB reactor treating distillery effluent in an anaerobic condition using the mixed culture of bacteria was investigated. The biodegradation of distillery spent wash by the microbial biomass was analysed based on the COD removal efficiency and biomass growth. The optimum COD removal efficiency for various OLRs ranging between 0.25 to 27.4 kg COD/m3 d at 24 h HRT was 83.87% respectively. The growth of biomass was inherent from SEM observation of sludge granules and VSS concentration in the reactor. Based on the molecular identification of the bacterial isolate the strain was identified as Stenotrophomonas maltophilia DSM 50170T.