Bacterial Diseases of Fish by Robert B. Moeller Jr.‚ DVM California Animal Health and Food Safety Laboratory System University of California Aeromonas hydrophila (Bacterial Hemorrhagic Septicemia) 1. Gram negative motile rods 2. Effects many freshwater species and usually is associated with stress and overcrowding. 3. The clinical signs and lesions are variable. The most common finding is hemorrhage in skin‚ fins‚ oral cavity and muscles with superficial ulceration of the
Premium Bacteria Infection Microbiology
Cystic Fibrosis is caused by a fault in the cystic fibrosis transmembrane conductance regulator (CFTR) gene on chromosome 7 at q31.2. For CF to be expressed‚ a faulty copy of the gene must be present at both alleles; autosomal recessive. Therefore both parents must be carriers of‚ or affected by the cystic fibrosis gene (fig. 1) for the gene to be passed on. If a person has one copy of the faulty allele (are heterozygous) they are carriers of the gene and can pass this allele on; if they possess
Premium Genetics DNA Mutation
Ingredient added that inhibits growth f many unwanted organisms Antibiotic-containing medium Selective and differential MacConkey agar – gram neg that ferment lactose Bile salts + dye Inhibits all but GNR that typically reside in the intestine Lactose + pH indicator Lactose fermenters are reddish Halotolerant- salt tolerant Staphylococcus aureus is haloterant. Based on this info which should be incorporated into a medium designed to isolate the bacterium ? –SALT Table 4.6 – know
Premium Bacteria
between Gram Positive and Gram Negative Shapes of bacteria and examples What shapes have you learnt? GRAM STAIN: The process! You should work on your lab notes. LECTURE 2 GRAM STAIN Developed by a Danish called Christian Gram in 1884 Stain a heat-fixed smear with a dye like crystal violet and fix with Iodine Then wash with ethanol or acetone Finally counterstain with a dye of different colour such as safranin (what is its colour? You have used it before!) 2 5 Gram positive Gram negative
Free Immune system Bacteria
Chapter 22: Oral and Gastrointestinal Diseases Question Type: Multiple Choice 1) Feces are composed about 50% by weight and volume of bacteria. Most of these are species of ________. a) Salmonella b) Escherichia c) Bacteroides d) Streptococcus Answer: c Difficulty: Medium Learning Objective 1: LO 22.1 Review the anatomy of the digestive tract as it pertains to microbial defenses. Section Reference 1: Section 22.1 Components of the Digestive system 2) Streptococcus form ________ ‚ polysaccharides
Premium Bacteria Hepatitis Escherichia coli
Transmission and epidemiology of MRSA: current perspectives Maggi Banning Abstract Staphylococcus aureus is a Gram-positive bacterium that developed resistance to the penicillin derivative tnethicillin. Subsequently‚ methicillin-resistant S. aureus {MRSA) emerged as a bacterium that became less susceptible to the actions of methicillin and thus developed the ability to colonize and cause life-threatening infections. Globally.‚ MRSA continues to cause hospital-acquired infections which are becoming
Premium Antibiotic resistance Staphylococcus aureus Bacteria
Primary Prevention of Hospital Acquired Infections Kyle Volack Grand Canyon University During my community teaching experience‚ the opportunity to provide education to community health care workers regarding health care associated infections was given. Health care associated infections are a major epidemic throughout health care worldwide. Primary prevention is a major factor of preventing health care associated infections on all levels. As primary prevention seeks to stop injury
Premium Staphylococcus aureus Nursing Infectious disease
or 2 is obtained‚ then there is an increased risk of death with hospitalization for a score of 2. If there is a score of 0‚ then the patient can be treated on an outpatient bases. With Krista tobacco usage‚ the likely organism is staphylococcus aureus which is a gram positive coccal bacterium. The treatment for the first line is Azithromycin 500 mg orally one dose‚ then 250 mg PO daily for 4 days or Clarithromycin 500 mg orally twice a day and finally Doxycycline 100 mg orally twice a day. In terms
Premium Immune system Cancer Blood
Answer Questions Write a 125- to 150-word response to each of the following questions: Staphylococcus What is the infectious agent (pathogen) that causes this infectious disease? For example‚ the name of the bacteria‚ virus‚ or parasite. A) Staphylococcus aureus bacteria‚ also called “staph”‚ cause the infectious agent (pathogen) MRSA. MRSA or “mercer” stands for methicillin-resistant Staphylococcus aureus. This strain of staph is resistant to most antibiotics and can be fatal. MRSA Staph infections
Premium
Microbiology: An Introduction‚ 10e (Tortora et al.) Chapter 14 Principles of Disease and Epidemiology Test Bank 1) A commensal bacterium A) Does not receive any benefit from its host. B) Is beneficial to its host. C) May be an opportunistic pathogen. D) Does not infect its host. E) B and D only. Answer: C media. B) Some microorganisms don’t cause the same disease in laboratory animals. C) Some microorganisms cause different symptoms under different conditions. D) Some microorganisms can’t be observed
Premium Bacteria Infectious disease Infection