50 Matching Annotations
  1. Jun 2017
    1. These integrin proteins signal to the cell to endocytose the cell (receptor-mediated endocytosis), which engulfs the adenovirus in a clathrin-coated vesicle

      Adenovirus and Sin Nombre Virus both use integrin proteins to complete receptor-mediated endocytosis

    1. The hantavirus virion first attaches to its target cell, pulmonary endothelial cells, by using the protein αVβ3 integrin as a receptor (Borges). Next, the virion enters the targeted cell via endocytosis (Vaheri).

      Adenovirus and Sin Nombre virus both use integrin proteins to complete receptor-mediated endocytosis

    1. Motile via flagella at 30 °C and below, but usually not at 37 °C,[4] L. monocytogenes can instead move within eukaryotic cells by explosive polymerization of actin filaments (known as comet tails or actin rockets).

      virulence

  2. May 2017
    1. More than 98% of cases of invasive meningococcal disease in the United States are sporadic. In 2008 in the United States, disease caused by serogroup B (32% of cases), serogroup C (32% of cases), and serogroup Y (24% of cases) accounted for most of the endemic disease, causing meningitis in 53% of cases

      prevalence

    2. Given the better system of searching for active cases, the overall incidence of bacterial meningitis was two to three times that of the previous report (276), although H. influenzae, N. meningitidis, and S. pneumoniae continued to account for the majority of cases (77%).

      prevalence

    1. hough H. influenzae meningitis is rare in adolescents and adults, rates of meningitis due to Hib are highest in children less than five years of age, with an estimated incidence rate of 31 cases per 100,000

      prevalence of H. influenzae

    1. On the basis of ABCs data, the serogroup distribution in the US in 2007 was serogroup B, 25%; serogroup C, 30%; and serogroup Y, 37%, with 9% caused by serogroup W-135, other serogroups, and nongroupable strains (www.cdc.gov/ncidod/DBMD/abcs/survreports/mening07.pdf).

      prevalence of n. meningitidis

    1. To initiate infection the organism must penetrate the gastrointestinal mucus, which it does by using its high motility and spiral shape. The bacteria must then adhere to the gut enterocytes and once adhered can then induce diarrhoea by toxin release.

      adherence

    1. Two mechanisms of bacitracin resistance are understood. One mechanism relies on a protein called a BcrABC transporter which pumps bacitracin out after it has entered the cell. Another mechanism relies on another protein called BacA which provides the active phosphorylated bactoprenol from a different synthetic pathway.

      bacitracin resistance

    1. The majority of GCS and GGS strains demonstrate in vitro susceptibility to penicillins, vancomycin, erythromycin, and cephalosporins (3,30). Antimicrobial tolerance, defined as a minimum bactericidal concentration (MBC) 32 or more times higher than the MIC, among GCS and GGS has been reported for penicillin and other agents (24, 27,29).

      examples of antibiotic susceptibilities and tolerances for group c/g strep

  3. Apr 2017
    1. Early and aggressive surgical debridement of the site of infection as well as appropriate antimicrobial therapy is required. Due to the "inoculum effect," penicillin may be less effective in the treatment of necrotizing fasciitis (83). Appropriate antibiotics include nafcillin and clindamycin (7,83).  

      antibiotic treatment for nec fas.

    1. Use insect repellents containing 20% to 30% DEET (N,N-diethyl-meta-toluamide), picaridin or IR3535. EPA provides information on the proper use of repellents.

      can ask if working outside/camping/etc without using insect repellent

    1. For this reason, it is important to share with your health care provider any likely exposures, such as tick and deer fly bites, or contact with sick or dead animals. 

      asking about mode of transmission necessary for diagnosing this