scholarly journals Supplementary polio immunization activities and prior use of routine immunization services in non-polio-endemic sub-Saharan Africa

2012 ◽  
Vol 90 (7) ◽  
pp. 495-503 ◽  
Author(s):  
Stephane Helleringer ◽  
Jemima A Frimpong ◽  
Jalaa Abdelwahab ◽  
Patrick Asuming ◽  
Hamadassalia Touré ◽  
...  
PEDIATRICS ◽  
1996 ◽  
Vol 98 (4) ◽  
pp. 796-796
Author(s):  
Samuel L. Katz

Drs Terry and Schneider raise legitimate questions regarding changes in polio immunization recommendations. In response to the former, although two doses of inactivated polio vaccine provide humoral immunity that will protect an individual against central nervous system invasion by wild or revertant attenuated polioviruses, they do not provide intestinal immunity, a valued asset of oral polio vaccine (OPV). Because we live in a global community where jet transportation enables one to move from a polio-endemic area to a polio-free area in less than one day, the introduction of wild polio viruses from sub-Saharan Africa or Southeast Asia poses a legitimate threat and concern to those who wish to maintain community protection, in addition to individual protection, against possible reintroduction of wild virus to the United States.


Author(s):  
Lydia A. Taiwo ◽  
Aisha A. Abubakar ◽  
Endie Waziri ◽  
Lilian A. Okeke ◽  
Suleiman H. Idriss

Objective1. To assess the knowledge, perception, and practices of mothers/caregivers on vaccine preventable diseases in children aged 12-23months in Kaduna State, Nigeria2. To determine the immunization coverages in Kaduna State, Nigeria3. To determine the sources of information on routine immunizationamong mothers/caregivers of children aged 12-23months in the study areaIntroductionImmunization is one of the safest and most effective interventionsto prevent disease and early child death1. Although, about threequarters of the world’s child population is reached with the requiredvaccines, only half of the children in Sub-Saharan Africa get accessto basic immunization2. A substantial number of children worldwidedo not complete immunization schedules because neither healthservices nor conventional communication mechanisms regularlyreach their communities3. Separate studies in Australia and PapuaNew Guinea have shown that knowledge gaps underlie lowcompliance with vaccination schedules3, 4. Mothers are less likely tocomplete immunization schedules if they are poorly Informed aboutthe need for immunization, logistics (which includes time, date, andplace of vaccination), and the appropriate series of vaccines to befollowed5, 6. Although knowledge in itself is insufficient to createdemand, poor knowledge about the need for vaccination and whenthe next vaccination is due is a good indicator of poor compliance7.Up-to-date, complete, and scientifically valid information aboutvaccines can help parents to make informed decisions8.Immunity gap created by this low immunization coverage inNorthern Nigeria favors the emergence and transmission of somevaccine preventable diseases (VPDs) especially measles and polio9.MethodsA cross-sectional descriptive study was conducted using multistagesampling technique; 379 mothers/caregivers with children aged12-23 months were recruited. Data collection was done using semistructured interviewer-administered questionnaire and analyzed usingEpi infoTMversion 7. Descriptive statistics using absolute numbers andproportions and Odds ratio/Chi2 were determined between variablesand p≤0.05 was considered statistically significant. Multivariateanalysis was conducted using logistic regression.ResultsMean age of respondents was 28.6 (SD=±6.6), 245(64.7%)practiced Islam, 128(33.8%) completed Secondary school,246(64.9%) unemployed, 361(92.3%) were married and 186(49.1%)were from rural settlements. Among the children whose mothers/caregivers were interviewed, 163(43.01%) were between aged16-19 months old while most 238(62.80%) fell within the birth orderof 2nd -5thchild. Only 59 (15.6%) of these children were found tobe fully immunized, evidenced by vaccination card history. Majorityof respondents 244(64.4%) had unsatisfactory knowledge while197(55.4%) and 204(54.0%) exhibited poor perception and badpractices respectively, regarding routine immunization. Commonestsource of information was radio 69(61.61%). Educationalstatus [OR=1.9 (95%CI:1.1-3.3)] and good perception [OR=2.6(95%CI:1.5-4.5)] of mothers were found to be associated with gettinginformation on routine immunization within 12months prior to thisstudy while Polygamous family setting [OR=0.6(95%CI:0.2-0.6)],unsatisfactory knowledge [OR=0.3(95%CI:0.2-0.7)] and badpractices [OR=0.5(95%CI:0.3-0.9)] of mothers were independentlyassociated with lack of information on routine immunization.ConclusionsThere is low immunization coverage in this community. Mother’seducational status, family setting, knowledge, perception andpractices about immunization are important factors that influenceaccess to information on routine immunization.


2017 ◽  
Vol 1 (6) ◽  
pp. 533-537
Author(s):  
Lorenz von Seidlein ◽  
Borimas Hanboonkunupakarn ◽  
Podjanee Jittmala ◽  
Sasithon Pukrittayakamee

RTS,S/AS01 is the most advanced vaccine to prevent malaria. It is safe and moderately effective. A large pivotal phase III trial in over 15 000 young children in sub-Saharan Africa completed in 2014 showed that the vaccine could protect around one-third of children (aged 5–17 months) and one-fourth of infants (aged 6–12 weeks) from uncomplicated falciparum malaria. The European Medicines Agency approved licensing and programmatic roll-out of the RTSS vaccine in malaria endemic countries in sub-Saharan Africa. WHO is planning further studies in a large Malaria Vaccine Implementation Programme, in more than 400 000 young African children. With the changing malaria epidemiology in Africa resulting in older children at risk, alternative modes of employment are under evaluation, for example the use of RTS,S/AS01 in older children as part of seasonal malaria prophylaxis. Another strategy is combining mass drug administrations with mass vaccine campaigns for all age groups in regional malaria elimination campaigns. A phase II trial is ongoing to evaluate the safety and immunogenicity of the RTSS in combination with antimalarial drugs in Thailand. Such novel approaches aim to extract the maximum benefit from the well-documented, short-lasting protective efficacy of RTS,S/AS01.


1993 ◽  
Vol 47 (3) ◽  
pp. 555-556
Author(s):  
Lado Ruzicka

Crisis ◽  
2011 ◽  
Vol 32 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Eugene Kinyanda ◽  
Ruth Kizza ◽  
Jonathan Levin ◽  
Sheila Ndyanabangi ◽  
Catherine Abbo

Background: Suicidal behavior in adolescence is a public health concern and has serious consequences for adolescents and their families. There is, however, a paucity of data on this subject from sub-Saharan Africa, hence the need for this study. Aims: A cross-sectional multistage survey to investigate adolescent suicidality among other things was undertaken in rural northeastern Uganda. Methods: A structured protocol administered by trained psychiatric nurses collected information on sociodemographics, mental disorders (DSM-IV criteria), and psychological and psychosocial risk factors for children aged 3–19 years (N = 1492). For the purposes of this paper, an analysis of a subsample of adolescents (aged 10–19 years; n = 897) was undertaken. Results: Lifetime suicidality in this study was 6.1% (95% CI, 4.6%–7.9%). Conclusions: Factors significantly associated with suicidality included mental disorder, the ecological factor district of residence, factors suggestive of low socioeconomic status, and disadvantaged childhood experiences.


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