TY - GEN AU - Heckert,R A AU - Myers,D J TI - Absence of antibodies to avian pneumovirus in Canadian poultry SN - 0042-4900 PY - 1993///0420 KW - Animals KW - Antibodies, Viral KW - analysis KW - Canada KW - Chickens KW - immunology KW - Paramyxoviridae KW - Poultry Diseases KW - Respirovirus Infections KW - Turkeys N1 - Publication Type: Letter UR - https://doi.org/10.1136/vr.132.7.172-a ER -