When Prevenar is co-administered with hexavalent vaccines (DTaP/ Hib(PRP-T)/ IPV/ HepB), fever ≥ 38 °C per dose was reported in 28.3% to 48.3% of infants in the group receiving Prevenar and the hexavalent vaccine at the same time as compared to 15.6% to 23.4% in the group receiving the hexavalent vaccine alone.