Pakhare Abhijit P, Bali Surya, Pawar Radhakishan B, Lokhande Ganesh S
Department of Community and Family Medicine, All Institute of Medical Sciences, Saket Nagar, Bhopal, Madhya Pradesh, India.
Health Services, Mumbai, Maharashtra, India.
WHO South East Asia J Public Health. 2014 Apr-Jun;3(2):190-193. doi: 10.4103/2224-3151.206736.
India was certified polio free on 27 March 2014. Supplementary immunization activities, in the form of national immunization days, is one of the core strategies for eradication, where oral polio vaccine is administered to children aged under 5 years throughout the country. Oral polio vaccine is heat sensitive and requires maintenance of a stringent cold chain. Therefore, vaccine carriers with ice packs are used in the Pulse Polio Immunization (PPI) programme. This study assessed whether the cold chain is maintained during National Immunization Day in Beed district. A cross-sectional study was conducted at six randomly selected booths, one each from six primary health centres in Georai block of Beed district in Maharashtra. Electronic data loggers, configured to measure half-hourly temperatures, were kept in vaccine carriers throughout the day of PPI. The vaccine carrier temperature was below 8 °C at all six booths; minimum temperature recorded was -9.5 °C, while the maximum was 4.5 °C. The vaccine vial monitor did not reach discard point in any booth. A vaccine carrier with four ice packs very effectively maintains the cold chain required for oral polio vaccine.
2014年3月27日，印度被认证为无脊髓灰质炎国家。以全国免疫日形式开展的补充免疫活动是根除脊髓灰质炎的核心战略之一，该活动在全国范围内为5岁以下儿童接种口服脊髓灰质炎疫苗。口服脊髓灰质炎疫苗对热敏感，需要维持严格的冷链。因此，在脉冲式脊髓灰质炎免疫（PPI）计划中使用配有冰袋的疫苗运输箱。本研究评估了比德区全国免疫日期间冷链是否得到维持。在马哈拉施特拉邦比德区乔莱街区六个随机选择的摊位开展了一项横断面研究，这六个摊位分别来自六个初级卫生中心。在PPI当天，将配置为每半小时测量一次温度的电子数据记录器全天置于疫苗运输箱中。所有六个摊位的疫苗运输箱温度均低于8°C；记录到的最低温度为-9.5°C，最高温度为4.5°C。在任何摊位，疫苗瓶监测器均未达到报废点。配有四个冰袋的疫苗运输箱能非常有效地维持口服脊髓灰质炎疫苗所需的冷链。
