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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Vaccine. 2014 Feb 11;32(16):1856–1862. doi: 10.1016/j.vaccine.2014.01.076

Figure 4.

Figure 4

Acceptability of microneedle patches and self-vaccination assuming patches have similar effectiveness and cost to injections. Participant preference for four vaccination options is shown: i) IM injection, ii) healthcare worker (HCW) applies a patch, iii) self-administration of a patch with a healthcare worker nearby and iv) self-administration of a patch at home. The unfilled portion shows participants who would remain unvaccinated. (A) Microneedle patches without self-vaccination options (i.e., only options (i) and (ii)). (B) Microneedle patches with self-vaccination options (i.e., options (i) through (iv)). (C) Comparison of self-vaccination acceptability for participants who inserted with thumb pressure alone or with the snap-based device. Self-vaccination preference was significantly higher for those using the snap-based device (p = 0.004).