World Health Organization (WHO), Islamabad, Pakistan.
World Health Organization (WHO), Islamabad, Pakistan; National Emergency Operations Centre for Polio Eradication, Islamabad, Pakistan.
Vaccine. 2020 Feb 18;38(8):1893-1898. doi: 10.1016/j.vaccine.2019.12.059. Epub 2020 Jan 23.
The first large-scale vaccination campaign using needle-free jet injectors to administer fractional doses of inactivated poliovirus vaccine (fIPV) was conducted in Karachi, Pakistan, in February 2019. Data on acceptability of jet injectors were collected from 610 vaccinators and 4898 caregivers during the first four days of the campaign. Of those with prior needle and syringe experience, both vaccinators and caregivers expressed a strong preference for jet injectors (578/592 [97.6%] and 4792/4813 [99.6%], respectively), citing ease of use, appearance, and child's response to vaccination. Among caregivers, 4638 (94.7%) stated they would be more likely to bring their child for vaccination in a future campaign that used jet injectors. Mean vaccine coverage among towns administering fIPV was 98.7% - an increase by 18.4% over the preceding campaign involving full-dose IPV. Our findings demonstrate the strong acceptability of fIPV jet injectors and highlight the potential value of this method in future mass campaigns.
2019 年 2 月，巴基斯坦卡拉奇市首次开展了大规模的疫苗接种活动，使用无针喷射注射器来接种小剂量的灭活脊灰病毒疫苗（fIPV）。在活动开展的头四天，共收集了 610 名接种者和 4898 名看护者对喷射注射器的接受程度的数据。在有针和注射器使用经验的人群中，接种者和看护者都强烈倾向于使用喷射注射器（分别为 578/592[97.6%]和 4792/4813[99.6%]），他们表示这种注射器易于使用、外观好，而且儿童对疫苗接种的反应良好。在看护者中，有 4638 人（94.7%）表示，如果未来的活动使用喷射注射器，他们更有可能带孩子去接种疫苗。接种 fIPV 的城镇的平均疫苗接种率为 98.7%，比之前使用全剂量脊灰病毒疫苗的活动增加了 18.4%。我们的研究结果表明，fIPV 喷射注射器具有很强的可接受性，并强调了这种方法在未来大规模疫苗接种活动中的潜在价值。
