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对１９９４～１９９８ 年共５ 年间生产的口服脊髓灰质炎活疫苗糖丸的病毒滴度的检定结果进行质量分析。结果显示：近５ 年生产的口服脊髓灰质炎活疫苗糖丸中，其病毒滴度稳中有升，平均滴度由６－１３ｌｏｇＴＣＩＤ５０／人份上升到６－２５ｌｏｇＴＣＩＤ５０／人份；同时疫苗的热稳定性试验结果也在逐步提高，其病毒滴度的平均基础滴度与３７℃４８ｈ 平均滴度差值的平均值由０－８７ｌｏｇＴＣＩＤ５０／人份下降到０－６３ｌｏｇＴＣＩＤ５０／ 人份。
The results of the assay of the virus titers of oral polio vaccine produced during the five years from 1994 to 1998 were analyzed by mass. The results showed that the titer of virus in oral poliovaccine vaccine produced in the recent 5 years rose steadily and the average titer rose from 6-13 log TCID50 / person to 6-25 log TCID50 / person; meanwhile, the heat of the vaccine The stability test results are also gradually increased, the average of the virus titer average titers and 37 ℃ 48h average titer average difference from 0-87logTCID50 / person down to 0-63logTCID50 / person.