インフルエンザ菌
Ceftibuten is active against "Haemophilus influenzae", "Moraxella catarrhalis", "Escherichia coli", "Klebsiella pneumoniae", "K. oxytoca", "Proteus vulgaris", "P. mirabilis", "P. providence", "Salmonella" sp., "Shigella" sp., "Enterobacter" sp., and "Streptococcus" sp.