Pertussis toxin - Study guides, Class notes & Summaries

Question 1 Correct 4.17 points out of 4.17 The best defense against arboviruses is . Select one: a. prophylactic rifampin b. vaccination c. vector control d. prompt treatment with acyclovir Question 2 Correct 4.17 points out of 4.17 Meningitis can be caused by a number of microbes, and the causative organism is often identified by microscopic observation of the cerebrospinal fluid. Identify the mismatch in the following list oforganisms and the description of the microscopic obse...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Answer-Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, ...

NBME MICROBIOLOGY REVIEWED EXAM 2023/2024 India ink for - CORRECT ANSWER-Cryptococcus neoformans Silver stain for - CORRECT ANSWER-Fungi, Legionella, H. pylori Thayer Martin media for - CORRECT ANSWER-N. gonorrheae, N. meningitidis Tellurite plate for - CORRECT ANSWER-C. diphtheriae Löffler's media for - CORRECT ANSWER-C. diptheriae Charcoal yeast media for - CORRECT ANSWER-Legionella Sabouraud's agar for - CORRECT ANSWER-Fungi Obligate intracellulars - CORRECT ANSWER-Rickettsia ...

The three types of antigens that are used to serotype enteric bacteria. - O-outer membrane K- capsular antigen H- flagella Cause most nosocomial infections. General characteristics of a coliform. - -Rapidly ferment lactose. -Part of normal microbiota. -May be opportunistic. -Aerobic or facultatively anaerobic. -Found in soil and plants. -Presence in water = impure water and poor sewage treatment. Brucella melitensis - -CDC select agent. -Causes brucellosis in people= bang's dis...

Bordetella Pertussis (Whooping cough) - ansGram - Coccobacilli -Acute Respiratory, Severe coughing episodes (Bronchial pneumonia, acute encephalopothy -killed 5-10,000/yr before vaccine (available 2013/2014) -S&S: runny nose, sneezing, mild cough, low-grade fever, pneumonia, whoop sound inhaling, cyanosis, vomiting -Petrussis toxin a-b subunit - attaches/blocks cilia movement, increases cAMP levels (mucous secretions) -Filamentous hemagglutinin - attaches to human cilia -Transmission - p...

Virulence characteristics, unique properties, and diseases caused by: Mycobacterium tuberculosis, - -virulent strains contain cord factor (cell wall component) which is necessary to cause disease -3 types: primary (results from initial infection), secondary (reestab. of active infection after period of dormancy), disseminated (when infection spreads thru body) -high risk ppl are those who contact infected persons and those with immunodeficiencies (HIV--combo has 90% chance of death) -diagno...

Bordetella Pertussis (Whooping cough) - ansGram - Coccobacilli -Acute Respiratory, Severe coughing episodes (Bronchial pneumonia, acute encephalopothy -killed 5-10,000/yr before vaccine (available 2013/2014) -S&S: runny nose, sneezing, mild cough, low-grade fever, pneumonia, whoop sound inhaling, cyanosis, vomiting -Petrussis toxin a-b subunit - attaches/blocks cilia movement, increases cAMP levels (mucous secretions) -Filamentous hemagglutinin - attaches to human cilia -Transmission - p...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

Upper respiratory tract -sinus, nasal cavity, pharynx, epiglottis and larynx -normal microbiota reside here Lower respiratory tract -trachea, lungs (bronchi and alveoli), parenchyma and diaphragm Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Respiratory tract defense mechanisms -URT: has normal biota that inhibit other organisms -ciliated epithelial cells: work to push MOs or pollen up out of the thro...