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

Authors :: Ma FB
Luo LY
Zhang LH
Source :: Zhongguo yi miao he mian yi [Zhongguo Yi Miao He Mian Yi] 2009 Jun; Vol. 15 (3), pp. 193-5.
Publication Year :: 2009
Abstract: Objective: To evaluate the safety and epidemiological effect of the Freeze-dried Live attenuated varicella vaccine.<br />Methods: A random, double-blind control clinical trial was adopted.<br />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%.<br />Conclusion: The varicella vaccine produced by Changchun keygen biological products co., Ltd. was safe and effective.

Subjects :: Chickenpox immunology
Chickenpox Vaccine immunology
Child
Child, Preschool
China epidemiology
Drug Evaluation, Preclinical
Female
Freeze Drying
Humans
Male
Vaccines, Attenuated administration & dosage
Vaccines, Attenuated immunology
Chickenpox epidemiology
Chickenpox prevention & control
Chickenpox Vaccine administration & dosage

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