Which of the following explains why do doctors recommend people get the flu vaccine every year rather than every few years?
They should get the flu vaccine because their bodies already have a resistance.
Did you get the flu vaccine because viruses mutate.
They should get the flu vaccine because viruses do not mutate. They should get the flu vaccine because their bodies do not build up resistance.
The correct option is: They should get the flu vaccine because viruses mutate.
Doctors recommend people get the flu vaccine every year because viruses responsible for causing the flu can mutate or change over time. This means that the strains of flu viruses circulating in a given year may differ from previous years. By getting vaccinated annually, individuals ensure they have protection against the most current and prevalent strains of the flu.