Multiple Choice
Which of the following types of influenza are the most common and cause seasonal epidemics?
i. Influenza A.
ii. Influenza B.
iii. Influenza C.
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30. Microbial Infections - Respiratory System
Influenza
Multiple Choice
Immunity to influenza is acquired through:
A
Childhood vaccination schedule.
B
An annual multivalent vaccine.
C
Community exposure since no vaccine currently exists.
D
mRNA vaccines each flu season.
Verified step by step guidance1
Understand that immunity to influenza is typically acquired through vaccination or natural exposure to the virus, which stimulates the immune system to recognize and fight the virus in future encounters.
Recognize that influenza viruses mutate frequently, leading to different strains circulating each flu season, which is why immunity from one season may not protect against the next.
Learn that the most effective method to acquire immunity is through an annual multivalent vaccine, which contains antigens from multiple influenza strains predicted to be prevalent that year.
Note that childhood vaccination schedules may include influenza vaccines, but immunity is not solely acquired during childhood; annual vaccination is recommended for ongoing protection.
Understand that while mRNA vaccines are a new technology used for some viruses, the standard influenza vaccines are typically inactivated or live attenuated vaccines, and community exposure alone is not a reliable or safe method to acquire immunity.
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