1999] The PRP vaccines (Adams WG, et al. 1993) do not protect children against infections caused by NTHi strains; therefore, for producing a protective vaccine against both Hib and NTHi strains, PRP should be applied with an immunogenic protein carrier of NTHi such as its conserved surface lipoproteins. Some surface proteins of H. influenzae including auto-transporters (such as Hap, HMW1/HMW2, Hia, Hsf, P2, P5, D, E) are involved in adherence to epithelial cells [Poolman JT, et al 2000] , [Ronander E, et al. 2008] that have been studied previously [Brinton CC et
1999] The PRP vaccines (Adams WG, et al. 1993) do not protect children against infections caused by NTHi strains; therefore, for producing a protective vaccine against both Hib and NTHi strains, PRP should be applied with an immunogenic protein carrier of NTHi such as its conserved surface lipoproteins. Some surface proteins of H. influenzae including auto-transporters (such as Hap, HMW1/HMW2, Hia, Hsf, P2, P5, D, E) are involved in adherence to epithelial cells [Poolman JT, et al 2000] , [Ronander E, et al. 2008] that have been studied previously [Brinton CC et