lecture 1

<p>Two (small and large)</p> Signup and view all the answers

<p>Sequence of nucleotide base pairs in the gene coding for the 16S rRNA molecule</p> Signup and view all the answers

<p>About 1500 DNA nucleotides</p> Signup and view all the answers

<p>To help determine relatedness among organisms</p> Signup and view all the answers

<p>Short, single-stranded RNA molecule</p> Signup and view all the answers

<p>A few hundred nucleotides</p> Signup and view all the answers

<p>Cause diseases</p> Signup and view all the answers

<p>It is a viroid</p> Signup and view all the answers

<p>They lack a protein-coding capacity</p> Signup and view all the answers

<p>On the surface of the cell</p> Signup and view all the answers

<p>PrPC</p> Signup and view all the answers

<p>In the brain tissue</p> Signup and view all the answers

<p>Abnormal folding</p> Signup and view all the answers

<p>Extremely resistant to inactivation by UV light and X-rays</p> Signup and view all the answers

<p>Do not respond to currently known antimicrobial substances</p> Signup and view all the answers

<p>Properties of pathogenic microorganisms that allow them to invade the human body and/or produce toxins</p> Signup and view all the answers

<p>Swan-neck flasks</p> Signup and view all the answers

<p>Biogenesis</p> Signup and view all the answers

<p>Preventing airborne microorganisms from contaminating it</p> Signup and view all the answers

<p>The pathogen must be isolated in a pure culture</p> Signup and view all the answers

<p>The pathogen isolated from pure culture must cause the same disease in a healthy, susceptible laboratory animal</p> Signup and view all the answers

<p>The pathogen must be reisolated from the inoculated laboratory animal</p> Signup and view all the answers

<p>The same pathogen must be present in every case of the disease</p> Signup and view all the answers

<p>It occurs infrequently and irregularly</p> Signup and view all the answers

<p>The constant presence and/or usual prevalence in a population within a geographic area</p> Signup and view all the answers

<p>Persistent, high levels of disease occurrence</p> Signup and view all the answers

<p>Epidemic diseases affect a specific population in an area, while pandemic diseases spread over multiple countries or continents</p> Signup and view all the answers

<p>An epidemic that has spread over several countries or continents, usually affecting a large number of people</p> Signup and view all the answers

<p>Via blood circulation</p> Signup and view all the answers

<p>The potential to become active at some time</p> Signup and view all the answers

<p>Two or more pathogens infecting the same tissue</p> Signup and view all the answers

<p>Pyogenic infection</p> Signup and view all the answers

<p>Sudden and intense onset</p> Signup and view all the answers

<p>Fulminant infection</p> Signup and view all the answers

<p>The visibility of only a small fraction of diagnosed cases</p> Signup and view all the answers

<p>Surveillance and public health efforts</p> Signup and view all the answers

<p>Small fraction</p> Signup and view all the answers

<p>It increases susceptibility to infections</p> Signup and view all the answers

<p>For growth and metabolism</p> Signup and view all the answers

<p>Iron is essential for bacterial growth</p> Signup and view all the answers

<p>By targeting iron-binding proteins like transferrin and lactoferrin</p> Signup and view all the answers

<p>Chelating and transporting available iron into bacterial cells</p> Signup and view all the answers

<p>Treponema pallidum</p> Signup and view all the answers

<p>DtxR repressor, activated by iron</p> Signup and view all the answers

<p>Iron-deficient conditions</p> Signup and view all the answers

<p>Shiga-like toxin</p> Signup and view all the answers

<p>It decreases</p> Signup and view all the answers