[1] Fundacao Oswaldo Cruz, Aggeu Magalhaes Res Ctr, Dept Immunol, Recife, PE, Brazil
[2] IMIP Hosp, Dept Pediat Oncol, Mol Biol Lab, Recife, PE, Brazil
[3] Univ Sao Paulo, Sch Med Ribeirao Preto, Dept Med, Div Clin Immunol, BR-14049 Ribeirao Preto, Brazil
[4] Univ Fed Pernambuco, LIKA, Div Virol, Recife, PE, Brazil
[5] Fundacao Oswaldo Cruz, Aggeu Magalhaes Res Ctr, Lab Quantitat Methods, Recife, PE, Brazil
[6] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Quim, BR-05508 Sao Paulo, Brazil
[7] Fed Univ Goias UFG, Inst Biol Sci, Dept Gen Biol, Goiania, Go, Brazil