<span>D. They have to predict which strains of flu will become active months before the flu season begins.
The text states, "</span>Creating a flu vaccine is a bit of a guessing game, because the shots take months to manufacture. Each year in February, the World Health Organization (WHO) tries to predict<span> what viruses may be circulating the following winter, a process that can change as bugs mutate. " This supports the answer that a challenge for vaccine makers is determining which strain of the flu must be targeted in order to prevent its spread. </span>
There are many reason why both men and women could become victims of gender-based violence. Sexism, both genders are subject to rape although it is less common within the male population,etc.
If you need more help or further explanation just let me know!!
“This was a hearty, healthy, dapper, red-faced gentleman . . .”
“The geniality, as was the way of the man, was somewhat theatrical to the eye . . .”
A change of scenery, prop being presented, or a conversation being had about future events can all be examples of:
<h3>What is Foreshadowing?</h3>
Foreshadowing in literature refers to the dropping of subtle hints that will help the audience to have some insight into future occurrences.
An example is when the props or objects used in the drama are presented. It helps the observer to form some ideas about what might happen in the story.
Learn more about foreshadowing here:
brainly.com/question/96170
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