RESULTS	The most common AEs for ceftaroline fosamil and vancomycin plus aztreonam were diarrhoea ( 3.4 % versus 3.2 % ) , nausea ( 5.7 % versus 4.6 % ) , headache ( 5.1 % versus 3.7 % ) and pruritus ( 3.1 % versus 8.4 % ) , respectively .\