The CDC posted infection prevention strategies for healthcare settings for a seasonal flu variant on December 23.
Influenza A(H3N2) variant [A(H3N2)v] is a virus containing genes from human, avian and swine origins, and has been detected in 12 persons since July 2011, according to Prevention Strategies for Seasonal and Influenza A(H3N2)v in Health Care Settings .
While most of the infections have “resulted in self-limited, mild respiratory illnesses,” according to the CDC, three cases have resulted in hospitalizations.
The CDC says that is uncertain whether A(H3N2)v will continue to occur among humans or will become more common, but healthcare facilities should practice the same infection prevention principles for seasonal flu.
The agency also notes that this year’s seasonal flu shot may provide adults some protection from A(H3N2)v for adults but not for children.