Compatibility of ASO3-adjuvanted H1N1pdm09 and seasonal trivalent influenza vaccines in adults: Results of a randomized, controlled trial

► An evaluation of Canadian-made AS03-adjuvanted H1N1pdm09 vaccine in adults. ► Evaluation included compatibility with trivalent inactivated influenza (TIV) vaccine. ► One dose of H1N1pdm09 vaccine (3.75 μg) was sufficiently immunogenic. ► Concurrent dosing did not adversely affect immune responses to either vaccine. ► Concurrent vaccinations did not increase rates of systemic symptoms.