نتایج جستجو برای: pathogenic viruses and bacteria
تعداد نتایج: 16867564 فیلتر نتایج به سال:
Contamination of drinking water with pathogenic agents is a serious threat to the population. The potential presence of bacteria, viruses and protozoa requires efficient and effective monitoring methods that allow the detection and quantification of these pathogens. Conventional methods of pathogen detection in water primarily rely on culturing, a pre-concentration procedure and some biochemica...
A fecal analysis survey was undertaken to quantify animal inputs of pathogenic and indicator microorganisms in the temperate watersheds of Sydney, Australia. The feces from a range of domestic animals and wildlife were analyzed for the indicator bacteria fecal coliforms and Clostridium perfringens spores, the pathogenic protozoa Cryptosporidium and Giardia, and the enteric viruses adenovirus, e...
The dragon fruit, also known as pitaya, is an exotic tropical plant with numerous health benefits due to its high nutritional value and bioactive components, which include powerful natural antioxidants. Extracts from fruit stems, blooms, peels, pulps have a variety of therapeutic biological effects against pathogenic microbes such bacteria, fungus, viruses, well disorders diabetes, obesity, hyp...
Organic fertilizers are the sources of many human-pathogenic microorganisms which potentially threaten the human health. This study was carried out to explore the possible effects of soil and manure types on filtration, transport and fate of manure-borne bacteria through undisturbed soil columns. The manure treatments consisted of cow manure, poultry manure and sewage sludge which were distribu...
background: the aims of this study were to identify blastocystis subtypes (sts) in a cohort of turkish patients with various gastrointestinal symptoms using a novel real time pcr method developed recently for blastocystis detection and assess the relationship between blastocystis sts and patient symptoms. methods: totally, 617 stool samples of patients with gastrointestinal symptoms were examin...
Organic fertilizers are the sources of many human-pathogenic microorganisms which potentially threaten the human health. This study was carried out to explore the possible effects of soil and manure types on filtration, transport and fate of manure-borne bacteria through undisturbed soil columns. The manure treatments consisted of cow manure, poultry manure and sewage sludge which were distribu...
Amoebae are phagocytic protists that allow intracellular bacteria, fungi and viruses to live sympatrically (in the same niche) and thus make it possible and easy for them to exchange genes. They constitute a remarkable tool to study pathogenic bacteria. The use of these amoebae has been critical in isolating Legionella pneumophila strains and studying their pathogenicity [5] . Using this tool, ...
the antibacterial and antioxidant activities of methanol and acetone extracts of three marine algae, including hypnea hamulosa, gracilaria corticata and enteromorpha intestinalis wereinvestigated.antioxidant activities were determined by means of total antioxidant capacity, total phenolic compounds, dpph radical scavenging activity and ferric reducing antioxidant power. antibacterial activity w...
background: considering the high prevalence of bacterial vaginosis and its association with urinary tract infection in women and treatment of gynecologic problems occur when a high recurrence of bacterial vaginosis is often treated with antibiotics. the purpose of this study is to investigate the inhibitory effect of lactobacillus rhamnosus on pathogenic bacteria isolated from women with bacter...
BACKGROUND Bacteria and respiratory viruses are implicated in the pathogenesis of acute otitis media (AOM); however, data from low-middle income countries are sparse. We investigated the etiology of AOM in HIV-infected (HIV+), HIV-uninfected (HIV-) and HIV-exposed clinically asymptomatic for HIV-infection (HEU) South African children. METHODS Children ≥3 months to <5 years of age with AOM wer...
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