plasma cells b-cells segregate specific antibodies to mark an subsequently destroy viruses influenza viruses

agent allergy antibody antigen blood bone cell cells coughing defense disease epidemic epitope fever flu headache health hemaglutinin human humoral illness immune immunity immunization immunoglobulin infection infectous influenza leucocyte lymph lymphocyte marrow neuraminidase node outbreak pathogenic plasma pneumonia protein rendering response rna specific stimulation swine system vaccination vaccine viral virus weakness white