<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>
Adjectives that start with 'E' -
Enormous
Ecstatic
Ebony
Egotistic
Extraordinary
think <span>Explicit language is not open to interpretation, but implicit language is is your answer im not 100% shure tho</span>
IT is written by someone other than the main character.
hello!! i would love to be your english friend! im trying to learn spanish!
