CDC approves nasal vaccine for flu season

The nasal spray version of the flu vaccine has the green light for the upcoming flu season after two years of the Centers for Disease Control and Prevention not recommending it because it was thought to be less effective.   The spray did not seem to work as well against the common H1N1 strain of the flu over the last few seasons but is expected to work better this year, the Chicago Tribune reports.  All nasal spray flu vaccines for the 2018-2019 season will contain four flu viruses: an influenza…
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