[1] Chiba Univ, Grad Sch Med, Dept Innovat Med, 1-8-1 Inohana,Chuo Ku, Chiba 2608670, Japan
[2] Chiba Univ, Future Mucosal Vaccine Res & Dev Synergy Inst, Chiba, Japan
[3] Chiba Univ, Futurist Mucosal Vaccine Res & Dev Synergy Inst cS, Chiba, Japan
[4] Univ Tokyo, Inst Med Sci, Int Res & Dev Ctr Mucosal Vaccines, Div Mucosal Vaccines, Tokyo, Japan
[5] Chiba Univ Hosp, Dept Human Mucosal Vaccinol, Chiba, Japan
[6] Chiba Univ Univ Calif San Diego Ctr Mucosal Immuno, Sch Med, Dept Med, San Diego, CA 92093 USA
[7] Univ Calif San Diego, Div Comparat Pathol & Med, Dept Pathol, La Jolla, CA USA
[8] Univ Calif San Diego, Ctr Vet Sci & Comparat Med, San Diego, CA USA
[9] Chiba Univ, Future Med Educ & Res Org, Chiba, Japan
[10] HanaVax Inc, Tokyo, Japan
[11] Chiba Univ, Inst Global Prominent Res, Mucosal Immunol & Allergy Therapeut, Chiba, Japan
[12] Univ Tokyo, Inst Med Sci, Int Res & Dev Ctr Mucosal Vaccines, Div Clin Vaccinol, Tokyo, Japan
[13] Chiba Univ, Inst Adv Acad Res, Chiba, Japan