Influenza immunization for all health care personnel: Keep it mandatory

Carrie L. Byington, Yvonne A. Maldonado, Elizabeth D. Barnett, Herbert Dele Davies, Kathryn M. Edwards, Ruth Lynfield, Flor M. Munoz, Dawn L. Nolt, Ann Christine Nyquist, Mobeen H. Rathore, Mark H. Sawyer, William J. Steinbach, Tina Q. Tan, Theoklis E. Zaoutis