(1) Newborn babies at risk of severe chickenpox can also be given antiserum (serum containing antibodies).(2) Serotyping was done by the set of type specific antisera .(3) Obtaining antisera against two immunologically distinct red cell antigens, he found these present in some mouse strains and absent from others.(4) In addition, a program to develop countermeasures including vaccines, antisera , and therapeutic agents to protect troops from possible biological attack was begun in 1953.(5) The specificity of the antisera obtained was quite satisfactory.
