An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Bettinger JA, Scheifele DW, Kellner JD, Halperin SA, Vaudry W, Law B, Tyrrell G; Canadian Immunization Monitoring Program, Active (IMPACT).Bettinger JA, et al. Among authors: kellner jd.Vaccine. 2010 Feb 25;28(9):2130-6. doi: 10.1016/j.vaccine.2009.12.026. Epub 2009 Dec 29.Vaccine. 2010.PMID: 20044050
Vanderkooi OG, Scheifele DW, Girgenti D, Halperin SA, Patterson SD, Gruber WC, Emini EA, Scott DA, Kellner JD; Canadian PCV13 Study Group.Vanderkooi OG, et al. Among authors: kellner jd.Pediatr Infect Dis J. 2012 Jan;31(1):72-7. doi: 10.1097/INF.0b013e318233049d.Pediatr Infect Dis J. 2012.PMID: 21960186Clinical Trial.