scholarly journals Clustered lot quality assurance sampling: a tool to monitor immunization coverage rapidly during a national yellow fever and polio vaccination campaign in Cameroon, May 2009

2011 ◽  
Vol 140 (1) ◽  
pp. 14-26 ◽  
Author(s):  
L. PEZZOLI ◽  
R. TCHIO ◽  
A. D. DZOSSA ◽  
S. NDJOMO ◽  
A. TAKEU ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Yellow Fever ◽  
Vaccination Campaign ◽  
Immunization Coverage ◽  
Vaccination Strategy ◽  
Oral Polio Vaccine ◽  
Polio Vaccine ◽  
Polio Vaccination ◽  
Lot Quality Assurance Sampling ◽  
Low Coverage

SUMMARYWe 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.

scholarly journals Safety and Immunogenicity of Live Oral Cholera and Typhoid Vaccines Administered Alone or in Combination with Antimalarial Drugs, Oral Polio Vaccine, or Yellow Fever Vaccine

1997 ◽  
Vol 175 (4) ◽  
pp. 871-875 ◽  
Author(s):  
Herwig Kollaritsch ◽  
John U. Que ◽  
Christian Kunz ◽  
Gerhard Wiedermann ◽  
Christian Herzog ◽  
...  
Keyword(s):  
Yellow Fever ◽  
Oral Polio Vaccine ◽  
Antimalarial Drugs ◽  
Yellow Fever Vaccine ◽  
Polio Vaccine ◽  
Typhoid Vaccines

Trivalent Oral Polio Vaccine (Continued)

PEDIATRICS ◽  
1971 ◽  
Vol 48 (3) ◽  
pp. 494-494
Author(s):  
Milton R. Aisenson ◽  
Shanti Ghosh
Keyword(s):  
Oral Polio Vaccine ◽  
Polio Vaccine ◽  
Polio Vaccination

I hesitate to offer the suggestion that Doctor Ghosh's disappointing results with oral polio vaccine1 may have been the result of an impotent product. Its efficacy is affected by heat, by alternate thawing and refreezing, and possibly by antiseptics and other chemicals. Before dismissing oral polio vaccination, these factors should be studied.

An Evaluation of Lot Quality Assurance Sampling to Monitor and Improve Immunization Coverage

1990 ◽  
Vol 19 (4) ◽  
pp. 1086-1090 ◽  
Author(s):  
CLAUDIO F LANATA ◽  
GEORGE STROH ◽  
ROBERT E BLACK ◽  
HILDA GONZALES
Keyword(s):  
Quality Assurance ◽  
Immunization Coverage ◽  
Lot Quality Assurance Sampling

scholarly journals Immunization Coverage in Migrant School Children Along the Thailand-Myanmar Border

2016 ◽  
Vol 18 (5) ◽  
pp. 1038-1045 ◽  
Author(s):  
Aiko Kaji ◽  
Daniel M. Parker ◽  
Cindy S. Chu ◽  
Wipa Thayatkawin ◽  
Jiraporn Suelaor ◽  
...  
Keyword(s):  
School Children ◽  
Vaccine Coverage ◽  
Immunization Coverage ◽  
Oral Polio Vaccine ◽  
Migrant Populations ◽  
Polio Vaccine ◽  
School Based ◽  
Hard To Reach Populations ◽  
To Receive ◽  
Vaccination Completion

Abstract The objective of this project was to document and increase vaccine coverage in migrant school children on the Thailand-Myanmar border. Migrant school children (n = 12,277) were enrolled in a school-based immunization program in four Thai border districts. The children were evaluated for vaccination completion and timing, for six different vaccines: Bacille Calmette-Guerin (BCG); Oral Polio vaccine (OPV); Hepatitis B vaccine (HepB); Diphtheria, Pertussis and Tetanus vaccine (DTP); Measles Containing Vaccine or Measles, Mumps and Rubella vaccine (MMR); Tetanus and Diphtheria containing vaccine (Td). Vaccine coverage proportions for BCG, OPV3, DTP3, HepB3 and measles containing vaccine were 92.3, 85.3, 63.8, 72.2, and 90.9 % respectively. Most children were able to receive vaccines in a time appropriate manner. School-based immunization programs offer a suitable vaccine delivery mechanism for hard-to-reach populations. However, these data suggest overall low vaccine coverage in migrant populations. Further efforts toward improving appropriate vaccine coverage and methods of retaining documentation of vaccination in mobile migrant populations are necessary for improved health.

scholarly journals Oral Polio Vaccination and Hospital Admissions With Non-Polio Infections in Denmark: Nationwide Retrospective Cohort Study

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Signe Sørup ◽  
Lone G. Stensballe ◽  
Tyra G. Krause ◽  
Peter Aaby ◽  
Christine S. Benn ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Hospital Admissions ◽  
Respiratory Infections ◽  
Oral Polio Vaccine ◽  
Haemophilus Influenzae Type ◽  
Beneficial Effects ◽  
Polio Vaccine ◽  
Polio Vaccination

Abstract Background.  Live vaccines may have nonspecific beneficial effects on morbidity and mortality. This study examines whether children who had the live-attenuated oral polio vaccine (OPV) as the most recent vaccine had a different rate of admissions for infectious diseases than children with inactivated diphtheria-tetanus-pertussis-polio-Haemophilus influenzae type b vaccine (DTaP-IPV-Hib) or live measles-mumps-rubella vaccine (MMR) as their most recent vaccine. Methods.  A nationwide, register-based, retrospective cohort study of 137 403 Danish children born 1997–1999, who had received 3 doses of DTaP-IPV-Hib, were observed from 24 months (first OPV dose) to 36 months of age. Results.  Oral polio vaccine was associated with a lower rate of admissions with any type of non-polio infection compared with DTaP-IPV-Hib as most recent vaccine (adjusted incidence rate ratio [IRR], 0.85; 95% confidence interval [CI], .77–.95). The association was separately significant for admissions with lower respiratory infections (adjusted IRR, 0.73; 95% CI, .61–.87). The admission rates did not differ for OPV versus MMR. Conclusions.  Like MMR, OPV was associated with fewer admissions for lower respiratory infections than having DTaP-IPV-Hib as the most recent vaccination. Because OPV is now being phased-out globally, further studies of the potential beneficial nonspecific effects of OPV are warranted.

scholarly journals Assessment on the ownership and use of mosquito nets in Mozambique

2016 ◽  
Vol 50 (0) ◽  
Author(s):  
Jorge Alexandre Harrison Arroz ◽  
Francisco Chirrute ◽  
Chandana Mendis ◽  
Marta Honesta Chande ◽  
Veronique Kollhoff
Keyword(s):  
Quality Assurance ◽  
Mass Distribution ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Mosquito Net ◽  
Cross Sectional ◽  
Sampling Methodology ◽  
Mosquito Nets ◽  
Lot Quality Assurance Sampling ◽  
Low Coverage

ABSTRACT OBJECTIVE To assess the ownership and use of mosquito nets in 2014, in Mozambique. METHODS This observational and cross-sectional study assessed, in February and March 2015, 69 districts (nine of 11 provinces of Mozambique) that have benefited from the mass distribution of mosquito nets. The Lot Quality Assurance Sampling methodology was used. Each locality was denominated supervision area. The Lot Quality Assurance Sampling opts for a minimum of 19 households (in this case, we decided for a minimum of 100 households per district) from each supervision area to assess an indicator (in this case, two indicators were assessed: ownership and use of mosquito nets). Two questions guided the research: a) received a mosquito net; b) used a mosquito net the night before. RESULTS A total of 6,725 households were assessed. Eighty three percent of them had received mosquito nets in the campaign. Of the 6,232 respondents, 82.0% said they used mosquito nets the night before. The districts of the provinces with low coverage of ownership and use were Tete (69.5% and 60.0%, respectively), Zambezia (79.0% and 60.0%, respectively), and Gaza (81.6% and 70.7%, respectively). The largest coverage of ownership and use were observed in the districts of Nampula (96.7% and 93.8%, respectively) and Niassa (86.0% and 85.4% respectively). CONCLUSIONS In the districts assessed, the progression of ownership and use of mosquito nets is satisfactory. Nampula and Niassa are the only provinces where ownership and use are at desired levels.

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