Medvedeva G I, Korenberg E I, Pichushkov A V, Shatkin A A
Acta Virol. 1975 Sep;19(5):419-25.
A comparative analysis of the antihaemagglutinating, virus-neutralizing and complement-fixing activities of 19 S, 7 S, 4S and 1.5 S fractions of blood sera from goats of different ages pastured in a tick-borne encephalitis focus was carried out. Changes in the immunological activity of different fractions in relation to the age of the animals are discussed.