In 2016 the CDC recommended that LAIV not be used for the 2016-2017 flu season and instead another type of influenza vaccine be used. This is due to the poor effectiveness of this type of vaccine between 2013 and 2016 with it being non effective during the 2015-2016 season.
A determiner is a word that modifies a noun or a noun phrase. Thatâs also the definition of adjective, but although both parts of speech modify nouns, determiners are distinct from adjectives in several respects, most obviously in that the latter express attributes, whereas determiners express relationship.
That is to say, you know a determiner will be followed by a noun. Some categories of determiners are limited (there are only three articles, a handful of possessive pronouns, etc.), but the possessive nouns are as limitless as nouns themselves.