The new monitoring system showed the proportion of unvaccinated children at street intersection transit sites in the July campaign decreased from 24% (1,784/7,405) at the start of the campaign to 3% (143/5,057) by the end of the SIA, consistent with findings from the more labor-intensive post-vaccination coverage surveys routinely performed by the program.
"Liberia is a global model for success in increasing vaccination coverage in post-conflict countries," Ms. Chorlton added.
Median vaccination coverage in the post-pandemic seasons of 2010 2011 and 2011 2012 decreased to 15%and14%4%, respectively (reduction of 24%and35%5%, respectively, p < 0.0001).
These surveys provide the most recent information about vaccination coverage in some post-Soviet countries and are independent of the official health reports, which are known to overestimate vaccination coverage [ 18].
This post campaign evaluation survey for yellow fever vaccination coverage was conducted between the 6th and 12th of May 2011.
This post campaign evaluation of the yellow fever vaccination coverage was based on the WHO EPI coverage survey methodology using the cluster sampling approach [ 21].
The vaccination coverage for each vaccine was noted.
Dr. Clement says that better vaccination coverage requires putting vaccination posts at the border crossings, increasing human resources and providing additional cold chain equipment, especially vaccine carriers.
The significant decrease in serotype coverage for PCV7 and PCV13 post vaccination shows the impact of the childhood vaccination program on meningitis among children, as well as the resulting herd protection effect on meningitis among adults [ 21].
The variation of VE across different countries may be attributed to different age distributions, variable influenza vaccination coverage rates [27], and variation in post-SARS effects.
In addition to surveillance data, we also present information on estimated vaccination coverage from routine monitoring surveys conducted post-vaccination campaign.
