Bacterial Organisms and Flu Viruses Quiz
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Questions and Answers

What is the causative virus of walking pneumonia?

  • Chlamydia trachomatis
  • Mycoplasma pneumoniae (correct)
  • Rickettsiae rickettsia
  • Influenza virus

    • What is the mode of transmission for the flu virus?

  • Aerosol & Droplet (correct)
  • Fecal-oral route
  • Bloodborne transmission
  • Vector-borne transmission

    • What does 'Drift' refer to in the context of flu viruses?

  • Formation of biofilms on surfaces
  • Transformation of non-pathogenic strains into pathogenic strains
  • Small mutations, making host susceptible (correct)
  • Development of antibiotic resistance

    • Which human virus causes subacute sclerosing panencephalitis (SSPE)?

    <p>Measles virus</p> Signup and view all the answers

    What is the reservoir for the measles virus?

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

    'Shift' in flu viruses refers to:

    <p>Major mixing of RNAs, leading to a whole new virus</p> Signup and view all the answers

    Which Herpes virus causes infectious mononucleosis?

    <p>Epstein-Barr virus (EBV)</p> Signup and view all the answers

    'Lymphogranuloma venereum' is associated with which bacterium?

    <p>Chlamydia trachomatis</p> Signup and view all the answers

    How many Herpes viruses infect only humans?

    <p>2</p> Signup and view all the answers

    What is the major difference between 'Drift' and 'Shift' in flu viruses?

    <p>Drift involves small mutations, while Shift involves major mixing of RNAs.</p> Signup and view all the answers

    Which bacterial organism is associated with tick bites and Rocky Mountain Spotted Fever (RMSF)?

    <p>Rickettsiae rickettsia</p> Signup and view all the answers

    What is the characteristic clinical presentation of Subacute Sclerosing Panencephalitis (SSPE)?

    <p>Progressive dementia and myoclonic jerks years after initial measles infection</p> Signup and view all the answers

    What distinguishes Mycoplasma pneumoniae from other bacterial organisms mentioned?

    <p>Mycoplasma pneumoniae lacks a cell wall.</p> Signup and view all the answers

    How does the transmission of measles virus primarily occur?

    <p>Via respiratory droplets in the air</p> Signup and view all the answers

    What is the main reason why preexisting antibodies do not protect against 'Shift' in flu viruses?

    <p>'Shift' results in the expression of completely new viral proteins.</p> Signup and view all the answers

    Which feature distinguishes Herpes viruses that infect only humans from those that can infect animals?

    <p>'Human-only' Herpes viruses lack cross-species infectivity</p> Signup and view all the answers

    'Walking pneumonia' is a term used to describe a less severe form of pneumonia caused by which pathogen?

    <p>'Walking pneumonia' isn't caused by any specific pathogen</p> Signup and view all the answers

    What is the main difference between 'Drift' and 'Shift' in flu viruses?

    <p>Drift involves small mutations, while Shift involves major mixing of RNAs.</p> Signup and view all the answers

    What type of virus causes measles?

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

    What is the reservoir for measles?

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

    What is SSPE, as related to measles?

    <p>Subacute sclerosing panencephalitis</p> Signup and view all the answers

    How many Herpes viruses routinely infect only humans?

    <p>2</p> Signup and view all the answers

    What distinguishes Herpes viruses that infect only humans from those that can also infect animals?

    <p>'Human-only' viruses have distinct genetic sequences.</p> Signup and view all the answers

    How is influenza typically transmitted?

    <p>$2^3$ Aerosol &amp; Droplet</p> Signup and view all the answers

    'Lymphogranuloma venereum' is associated with which bacterium?

    <p>'Chlamydia trachomatis'</p> Signup and view all the answers

    'Walking pneumonia' is a term used to describe a less severe form of pneumonia caused by which pathogen?

    <p>'Mycoplasma pneumoniae'</p> Signup and view all the answers

    'Shift' in flu viruses refers to:

    <p>$6-2$ major changes leading to a whole new virus.</p> Signup and view all the answers

    What type of virus causes Measles?

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

    Which pathogen is associated with Lymphogranuloma venereum?

    <p>Chlamydia trachomatis</p> Signup and view all the answers

    What is the primary transmission route for Influenza?

    <p>Aerosol &amp; Droplet</p> Signup and view all the answers

    What is a significant characteristic of Shift in flu viruses?

    <p>Major mixing of RNAs, whole new virus</p> Signup and view all the answers

    Which bacterial organism is linked to Tick bites resulting in Rocky Mountain Spotted Fever?

    <p>Rickettsiae rickettsia</p> Signup and view all the answers

    What is the characteristic clinical progression of Subacute Sclerosing Panencephalitis (SSPE)?

    <p>Insidious onset, early dementia, seizures</p> Signup and view all the answers

    How many Herpes viruses exclusively infect humans?

    <p>7</p> Signup and view all the answers

    'Drift' in flu viruses primarily involves:

    <p>'New' HA or NA proteins</p> Signup and view all the answers

    'Walking pneumonia' is caused by which pathogen?

    <p>Mycoplasma pneumoniae</p> Signup and view all the answers

    What characterizes 'Shift' in flu viruses?

    <p>Genetic reassortment leading to whole new viruses</p> Signup and view all the answers

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