Journal article
Pezzoli Epi Infect 2011
Publication Abstract: We used the clustered lot quality assurance sampling (clustered-LQAS) technique to identify districts with low immunization coverage and guide mop-up actions during the last 4 days of a combined oral polio vaccine (OPV) and yellow fever (YF) vaccination campaign conducted in Cameroon in May 2009. We monitored 17 pre-selected districts at risk for low coverage. We designed LQAS plans to
reject districts with YF vaccination coverage <90% and with OPV
coverage <95%. In each lot the sample size was 50 (five clusters
of 10) with decision values of 3 for assessing OPV and 7 for YF
coverage. We ‘ rejected’ 10 districts for low YF coverage and 14
for low OPV coverage. Hence we recommended a 2-day extension of the
campaign. Clustered- LQAS proved to be useful in guiding the
campaign vaccination strategy before the completion of the
operations.
Authors
Languages
- English
Publication year
2011
Publisher
Cambridge University Press
Journal
Epidemiology Infection
Type
Journal article
Categories
- Data
Diseases
- Polio
Countries
- Cameroon
Organisations
- United Nations Children's Fund (UNICEF)
- World Health Organisation (WHO)
Tags
- Coverage monitoring
- Data quality
- OPV
WHO Regions
- African Region