نتایج جستجو برای: streptococcus species
تعداد نتایج: 585513 فیلتر نتایج به سال:
Dear Editor Streptococcus tigurinus, a novel bacterial species, was first discovered by Zbinden et al. in 2012 [1]. Although S. tigurinus was reported to cause invasive infections, accurate identification of this organism requires genetic analysis [1-6]. We report a patient with concurrent bacteremia, endocarditis, and spondylitis caused by S. tigurinus. A 79-yr-old male presented with chills a...
OBJECTIVE Early childhood caries (ECC) has become a prevalent public health problem among Chinese preschool children. The bacterial microflora is considered to be an important factor in the formation and progress of dental caries. However, high-throughput and large-scale studies of the primary dentition are lacking. The present study aimed to compare oral microbial profiles between children wit...
The goal.Studying the clinical course’s features of acute odontogenic inflammatory processes jaws in children, describing species composition pathogens, determination sensitivity to antibiotics various groups childhood. Materials and methods.The case histories 900 patients were analyzed, microbiological research methods carried out (microscopic examination samples with Gram staining, culture me...
Asthma is a chronic inflammatory disorder of the airways, which is diagnosed by periodic symptoms of inflammation, bronchial spasm, and increased mucosal secretions. It has higher incidence among the preschool children. There are many contradictory reports based on the effect of asthma on oral health, however it has been hypothesized that asthma could lead to poor oral health. The objective of ...
Group A streptococcus (GAS, Streptococcus pyogenes) is a strict human pathogen that causes severe, invasive diseases. GAS does not produce catalase, but has an ability to resist killing by reactive oxygen species (ROS) through novel mechanisms. The peroxide response regulator (PerR), a member of ferric uptake regulator (Fur) family, plays a key role for GAS to cope with oxidative stress by regu...
Streptococcus iniae is one of the most important agents that causes high mortality and losses in rainbow trout farms in Iran and the world. These bacteria can affects the consumers and people who deal with aquaculture via affected fish. So, viability of this bacterium in frozen fish and fish product can be useful for health care of consumers. A total of 90 rainbow trout, with average weight of ...
Members of the genus Streptococcus within the phylum Firmicutes are among the most diverse and significant zoonotic pathogens. This genus has gone through considerable taxonomic revision due to increasing improvements of chemotaxonomic approaches, DNA hybridization and 16S rRNA gene sequencing. It is proposed to place the majority of streptococci into "species groups". However, the evolutionary...
The clinical significance of viridans streptococci isolated from the blood cultures of 86 patients was determined. Isolates that were significant or suggestive of infection represented only 21% of the cases. Among 54 isolates for which the species was known, Streptococcus sanguis II was the most common. However, a significant association between species and clinical significance was not found.
purpose: to determine the normal conjunctival flora in neonates and infants. methods: conjunctival specimens were obtained from both eyes of 43 newborns delivered by cesarean section (c/s) and 53 newborns delivered by normal vaginal delivery (nvd) as well as 54 healthy infants in two maternity and pediatric hospitals. the specimens were cultured aerobically, anaerobically and for fungi. results...
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