TY - GEN AU - Pereira,H G AU - Tumova,B TI - Specific serum neutralization of the reactivating activity of influenza A2 viruses SN - 0022-1317 PY - 1968///0121 KW - Neutralization Tests KW - Orthomyxoviridae KW - immunology N1 - Publication Type: Journal Article UR - https://doi.org/10.1099/0022-1317-1-1-131 ER -