Meriden’s Protein Sciences Corp. said regulators have approved changes it has made to its flu vaccine, Flublok, for the upcoming flu season in September.
Vaccine manufacturers must receive such approvals from the U.S. Food and Drug Administration each year for tweaks to their respective processes and formulations, Protein Sciences said.
Flu season generally peaks in January or February, according to the U.S. Centers for Disease Control and Prevention.
Flublok, which received its first approvals in early 2013, is an egg-free vaccine that Protein Sciences says is triple the strength of conventional flu vaccines.
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