background and objectives: this study was designed as a retrospective study on urine samples during three years in shaheed mostafa khomeini hospital to determine demographic characteristics of patients with urinary tract infection (uti), microbial etiology, and susceptibility of isolated bacteria to antibiotics. materials and methods: all urines fulfilling the criteria for significant bacteriur...

the intensive use of antimicrobial agents worldwide for prophylactic and therapeutic purposes has been associated with increase of bacterial resistance in the exposed microbial environment. oxytetracycline is the most frequently used antibacterial in the cold water fish industry because of its broad spectrum of activity and low cost. aeromonas hydrophila and other motile aeromonads are among th...

the oral cavity harbors a diverse and abundant number of complex oral pathogens causing different oral diseases. the development of dental caries and periodontal diseases has been found to be closely associated with various gram positive and gram negative microrganisms. miswak, a natural toothbrush, has been documented as a potent antibacterial aid and its use is encouraged in different countri...

  Background and Objectives: Blood stream infections cause significant morbidity and mortality in the world. In this study, we aimed at describing the organisms responsible for septicemia in 2006-2007 and their antimicrobial susceptibility that might lead to proper selection of antimicrobial agents in hospitalized patients with suspected sepsis. Materials and Methods: Microbiology reports of ...

Mastitis implies that an infectious agent is present in the mammary gland and is nearly always caused by bacteria. Bacteria invade the udder by entering the teat orifice, multiply and die within the gland, and in the process, produce and release toxins that cause injury to secretory tissue and stimulate an immune response. Besides bacteria, other pathogens such as yeast, Mycoplasmas, and algae ...