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Measles quiz

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  • What type of virus causes measles and to which genus does it belong?
    Measles is caused by a single-stranded RNA virus from the genus morbillivirus.
  • How is measles primarily transmitted from person to person?
    Measles is transmitted via airborne respiratory droplets released when infected individuals talk, cough, or sneeze.
  • Which part of the body does the measles virus initially infect?
    The measles virus initially infects the upper respiratory tract.
  • After initial infection, how does the measles virus spread throughout the body?
    It spreads systemically via the bloodstream and lymphatic system.
  • What are Koplik spots and where are they found?
    Koplik spots are small white or gray lesions with a red halo, typically found on the inside of the mouth.
  • What type of rash is characteristic of measles, and where does it usually start?
    A maculopapular rash, consisting of red raised lesions, usually starts on the face and spreads downward.
  • Why is quarantining alone often ineffective in controlling measles outbreaks?
    Because measles is highly infectious before symptoms appear, allowing it to spread before individuals realize they are sick.
  • Which immune cells does the measles virus target and destroy?
    The measles virus destroys memory B and T cells.
  • What is the consequence of measles destroying memory B and T cells?
    It compromises adaptive immunity, increasing susceptibility to secondary infections.
  • List three common symptoms of measles.
    Common symptoms include fever, dry cough, and sore throat.
  • Name two serious complications that can result from measles infection.
    Serious complications include pneumonia and encephalitis (brain tissue inflammation).
  • How is measles infection confirmed in the laboratory?
    Measles is confirmed by serological testing for measles-specific antibodies or viral components.
  • Is there a specific antiviral treatment for measles?
    No, there is no specific antiviral treatment; management is supportive.
  • What vaccine provides long-term immunity against measles?
    The MMR vaccine (measles, mumps, and rubella) provides long-term immunity.
  • Why is vaccination against measles important for the community?
    Vaccination is crucial for herd immunity, which helps prevent outbreaks and epidemics.