[1] Univ Fed Minas Gerais, Pulmonol & Thorac Surg Dept, Med Sch, Belo Horizonte, Brazil
[2] Inst Nacl Torax & Clin Santa Maria, Pulm Dept, Santiago, Chile
[3] Brazilian Pediat Soc & Brazilian Immunizat, Sao Paulo, Brazil
[4] Univ Fed Rio de Janeiro, Univ Hosp Clementino Fraga Filho, Hepatol Unit, Rio De Janeiro, Brazil
[5] Resp Res Ctr, La Plata, Argentina
[6] Natl Inst Med Sci & Nutr S Zubiran, Mexico City, Mexico
[7] Hosp Bernardo Houssay, Infect Dis Dept, Buenos Aires, Argentina
[8] Argentine Soc Gerontol & Geriatr, Buenos Aires, Argentina
[9] Univ San Sebastian, Fac Med & Sci, Santiago, Chile
[10] Hosp Univ Dr Jose Eleuterio Gonzalez, Univ Autonoma Nuevo Leon, Ctr Invest Prevenc & Tratamiento Infecc Resp CIPTI, Monterrey, Mexico
[11] Natl Inst Med Sci & Nutr, Dept Infect Dis, Mexico City, Mexico
[12] GSK, Singapore, Singapore
[13] GSK, London, England
[14] GSK, Sao Paulo, Brazil