Analysis on Level of Antibody Against Influenza Viruse in Population of Army

Detection on antibody against influenza viruse in ten surveillance sites of whole army was caried out from Oct .1998 to Apr 1999.The results showed that the positive rate of influenza antibody A3 was 91%, GMT,102. The sensitive population of influenza A1 (H 1N 1,A/Beijing/53/97) was up to 66% and the senstive population of influenza B was 50%.The influenza A H 3N 2 ,H 1N 1 and B were in local prevalence in popuplation of army during 1998 to 1999.