Safety analysis of inactivated SARS-CoV-2 vaccine (Vero cells) during emergency vaccination in Hefei
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摘要:
目的 探讨合肥市新型冠状病毒灭活疫苗(Vero细胞)(简称新冠疫苗)在紧急接种期间的安全性,为该疫苗后期在全人群中的推广接种提供参考。 方法 在合肥市抽取19家预防接种门诊作为免疫安全性主动监测点,于2020年12月15日-2021年2月10日对合肥市接种新冠疫苗的18~59岁重点人群进行观察,对疫苗接种后不良反应发生率、不良反应类型及严重程度进行描述性分析。 结果 有效观察18 574人,累积接种新冠疫苗33 433剂次,接种发生一般不良反应713例次,发生率2.13%,第1剂次不良反应发生率为2.57%,高于第2剂次不良反应发生率1.58%(χ2=38.92, P < 0.001),2家公司生产灭活疫苗一般反应发生率的差异无统计学意义(χ2=3.08, P=0.082);在注射部位红肿、注射部位硬结、发热等不良事件中,1、2和3级不良事件发生率分别为0.65%、1.42%和0.06%,未发现≥4级及罕见和极罕见不良事件。 结论 国产新型冠状病毒灭活疫苗(Vero细胞)具有较高的安全性。 Abstract:Objective To study the safety of inactivated SARS-CoV-2 vaccine (Vero cells) (SARS-CoV-2 vaccine) in Hefei during the emergency vaccination period, and to provide reference for the promotion and vaccination of this vaccine in the whole population in the later period. Methods A total of 19 vaccination clinics in Hefei were selected as active monitoring sites for immunization safety. Focus groups aged 18-59 years who were vaccinated with SARS-CoV-2 vaccine in Hefei from 15 December 2020 to 10 February 2021 were observed. The incidence, types and severity of adverse reactions after vaccination were descriptively analyzed. Results A total of 18 574 people were effectively observed, and 33 433 doses of SARS-CoV-2 vaccine were inoculated. 713 cases of general adverse reactions occurred, with an incidence of 2.13%. The incidence of adverse reactions in the first dose was 2.57%, which was higher than that in the second dose (1.58%, χ2=38.92, P < 0.001). There was no statistical significance in the incidence of general adverse reactions of inactivated vaccine produced by the two companies (χ2=3.08, P=0.082). Among the adverse events such as redness and swelling at the injection site, induration at the injection site, and fever, the incidence of grade 1, 2 and 3 adverse events were 0.65%, 1.42%, and 0.06%, but there were no ≥ grade 4, rare and extremely rare adverse events. Conclusion Domestic inactivated SARS-CoV-2 vaccine (Vero cells) is great safe. -
Key words:
- SARS-CoV-2 /
- Inactivated vaccine /
- Safety
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表 1 合肥市新冠疫苗接种者基本指标
Table 1. Comparison of basic indicators of SARS-CoV-2 vaccinators in Hefei
分类 接种剂次 P值 第1剂次 第2剂次 性别 男 9 875 8 000 女 8 699 6 859 0.219 年龄(岁) 41.6±11.3 41.8±11.2 0.918 表 2 合肥市新冠疫苗接种者不同接种剂次和不同厂家疫苗不良反应发生率
Table 2. Comparison of adverse reaction rates of vaccines from different inoculants and manufacturers of SARS-CoV-2 vaccinators in Hefei
分类 接种剂次 χ2值 P值 第1剂次 第2剂次 北京生物 接种例数 10 256 8 523 不良反应例数 252 125 不良反应率(%) 2.46 1.47 23.21 < 0.001 北京科兴 接种例数 8 318 6 336 不良反应例数 226 110 不良反应率(%) 2.71 1.74 15.45 < 0.001 总不良反应率(%) 2.57 1.58 38.92 < 0.001 表 3 合肥市新冠疫苗接种者全身性不良事件发生率
Table 3. Comparison of incidence of systemic adverse events of SARS-CoV-2 vaccinators in Hefei
不良反应种类 第1剂(n=18 574) 第2剂(n=14 859) χ2值 P值 例次 不良反应率(%) 例次 不良反应率(%) 发热 64 0.34 32 0.21 4.81 0.031 a 面色苍白 10 0.05 8 0.05 0.01 0.979 嗜睡 45 0.24 19 0.13 5.66 0.021 a 呕吐 8 0.05 7 0.05 0.03 0.863 乏力 108 0.58 61 0.41 4.80 0.030 a 头痛 3 0.02 2 0.01 0.04 0.842 肌肉酸痛 32 0.17 11 0.07 6.20 0.011 a 胸闷 19 0.10 14 0.09 0.05 0.812 非注射部位皮疹 11 0.05 6 0.04 0.58 0.453 注:a接种第1剂和第2剂比较,P < 0.05。 表 4 合肥市新冠疫苗接种者局部性不良事件发生率
Table 4. Comparison of incidence of local adverse events of SARS-CoV-2 vaccinators in Hefei
不良反应种类 第1剂(n=18 574) 第2剂(n=14 859) χ2值 P值 例次 不良反应率(%) 例次 不良反应率(%) 注射部位红肿 98 0.52 47 0.32 8.54 0.003 a 注射部位硬结 52 0.28 38 0.26 0.18 0.671 注射部位皮疹 10 0.05 8 0.05 0.01 0.982 注:a接种第1剂和第2剂比较,P < 0.05。 -
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