1. Needle-free injectors for mass administration of fractional dose inactivated poliovirus vaccine in Karachi, Pakistan: A survey of caregiver and vaccinator acceptability
- Author
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Catherine Daly, Rana M. Safdar, John Agbor, Natalia A. Molodecky, Abdirahman Mahamud, Umar Farooq Bullo, Meghana Sreevatsava, Safi M. Malik, Jeff Partridge, Shoukat Ali Chandio, Mumtaz Ali Laghari, Ahmed Ali Shaikh, and Asalif D. Belayneh
- Subjects
medicine.medical_specialty ,030231 tropical medicine ,03 medical and health sciences ,0302 clinical medicine ,Jet injector ,medicine ,Humans ,Pakistan ,030212 general & internal medicine ,Child ,Syringe ,Needle free ,General Veterinary ,General Immunology and Microbiology ,business.industry ,Immunization Programs ,Vaccination ,Public Health, Environmental and Occupational Health ,equipment and supplies ,medicine.disease ,Poliomyelitis ,Poliovirus Vaccine, Inactivated ,Infectious Diseases ,Caregivers ,Family medicine ,Inactivated Poliovirus Vaccine ,Injections, Jet ,Molecular Medicine ,business - Abstract
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.
- Published
- 2019