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Randomized Controlled Trial
. 2009 Jun;15(3):193-5.

[Study on epidemiological effect of the freeze-dried attenuated live varicella vaccine]

[Article in Chinese]
Fu-bao Ma  1 , Lin-yun Luo, Long-hua Zhang
Affiliations
  • PMID: 20084878
Randomized Controlled Trial

[Study on epidemiological effect of the freeze-dried attenuated live varicella vaccine]

[Article in Chinese]
Fu-bao Ma et al. Zhongguo Yi Miao He Mian Yi. 2009 Jun.

Abstract

Objective: To evaluate the safety and epidemiological effect of the Freeze-dried Live attenuated varicella vaccine.

Methods: A random, double-blind control clinical trial was adopted.

Results: In the observation period, the incidence of varicella was 0.8 per thousand in the experimental group and 8.7 per thousand in control group. There was a significant difference (B.P=0.000017). Vaccine effectiveness (VE(%)) was 90.8%, the lower limit of 95%CI was 88.7%.

Conclusion: The varicella vaccine produced by Changchun keygen biological products co., Ltd. was safe and effective.

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