Successive introduction of four new vaccines in Rwanda: High coverage and rapid scale up of Rwanda's expanded immunization program from 2009 to 2013

Vaccine ◽  
2016 ◽  
Vol 34 (29) ◽  
pp. 3420-3426 ◽  
Author(s):  
Maurice Gatera ◽  
Sunil Bhatt ◽  
Fidele Ngabo ◽  
Mathilde Utamuliza ◽  
Hassan Sibomana ◽  
...  
Keyword(s):  
Scale Up ◽  
Immunization Program ◽  
High Coverage ◽  
New Vaccines

scholarly journals National Immunization Program: Computerized System as a tool for new challenges

2015 ◽  
Vol 49 (0) ◽  
Author(s):  
Ana Paula Sayuri Sato
Keyword(s):  
Implementation Process ◽  
Developed Countries ◽  
Nominal Data ◽  
Immunization Program ◽  
High Coverage ◽  
Public And Private ◽  
The Public ◽  
National Immunization ◽  
Innovative Tool ◽  
The Impact

The scope and coverage of the Brazilian Immunization Program can be compared with those in developed countries because it provides a large number of vaccines and has a considerable coverage. The increasing complexity of the program brings challenges regarding its development, high coverage levels, access equality, and safety. The Immunization Information System, with nominal data, is an innovative tool that can more accurately monitor these indicators and allows the evaluation of the impact of new vaccination strategies. The main difficulties for such a system are in its implementation process, training of professionals, mastering its use, its constant maintenance needs and ensuring the information contained remain confidential. Therefore, encouraging the development of this tool should be part of public health policies and should also be involved in the three spheres of government as well as the public and private vaccination services.

scholarly journals Prevalence of asymptomatic malaria parasitaemia following mass testing and treatment in Pakro sub-district of Ghana

2019 ◽  
Author(s):  
Ignatius Cheng Ndong ◽  
Daniel Okyere ◽  
Juliana Yartey Enos ◽  
Benedicta Ayiedu Mensah ◽  
Alexander Kwadwo Nyarko ◽  
...  
Keyword(s):  
Malaria Control ◽  
Lower Cost ◽  
Health Centre ◽  
Scale Up ◽  
Intermittent Preventive Treatment ◽  
Preventive Treatment ◽  
Asymptomatic Malaria ◽  
Community Based ◽  
High Coverage ◽  
Asymptomatic Parasitaemia

Abstract Background: Global efforts to scale-up malaria control interventions are gaining steam. These include the use of Long-Lasting Insecticide Nets, Intermittent Preventive Treatment and Test, Treat and Track (T3) using ACTs. Intermittent preventive treatment of children (IPTc) in Ghana has demonstrated a parasite load reduction of 90%. However, unanswered questions include – whether mass treatment of population sub-groups such as IPTc could be scaled-up to whole populations as in mass testing, treatment and tracking (MTTT)? What is needed to implement MTTT at scale? Can MTTT reduce asymptomatic parasitaemia levels in children under 15? And whether MTTT of populations complemented by community-based management of malaria (CBMm) using volunteers could be an effective strategy for malaria control at a lower cost. Methods: A population of 5,000 asymptomatic individuals in seven communities in the Pakro sub-district of Ghana participated in this study. A register was developed for each community following a census. MTTT engaged trained community-based health volunteers (CBHVs) who conducted house-to-house testing using RDTs every four months and treated positive cases with ACTs. Between interventions, CBMm was done on symptomatic cases. Results: MTTT Coverage was 98.8% in July 2017 and 79.3% in July 2018. Of those tested, asymptomatic infection with malaria parasites reduced from 1,795 (36.3%) in July 2017 to 1,303 (32.9%) in July 2018. Implementing MTTT significantly averted asymptomatic parasitaemia by 24% from July 2017 to July 2018 after adjusting for age, ITN use and temperature (OR=0.76, CI=0.67, 0.85 p ≤ 0.001). In comparison, treatment of symptomatic patients at the Health Centre reduced parasitaemia by 9% over the same period which was however, not statistically significant (OR=0.91, CI=0.67, 1.38 p = 0.672). A total of 223 (5.1%) cases were averted in children under 15 years (X² = 9.7, p < 0.002). An important observation was a decrease in hospital attendance, which negatively affected the internally generated funds (IGF) scheme of the participating health facilities. Conclusion: This study has demonstrated that implementing MTTT was feasible and could reduce prevalence of malaria asymptomatic parasitaemia in children under 15 years of age. Furthermore, the use of CBHVs could ensure high coverage at lower cost.

scholarly journals Vaccines in pregnancy: a review of their importance in Brazil

2003 ◽  
Vol 58 (5) ◽  
pp. 263-274 ◽  
Author(s):  
Lucia Ferro Bricks
Keyword(s):  
Infectious Diseases ◽  
Pregnant Women ◽  
Epidemiological Data ◽  
Cultural Issues ◽  
Review Of The Literature ◽  
Immunization Program ◽  
Safety And Efficacy ◽  
Maternal Immunization ◽  
New Vaccines ◽  
In Pregnancy

Neonates and young children remain susceptible to many serious infectious diseases preventable through vaccination. In general, current vaccines strategies to prevent infectious diseases are unable to induce protective levels of antibodies in the first 6 months of life. Women vaccinated during pregnancy are capable of producing immunoglobulin antibodies that are transported actively to the fetus, and maternal immunization can benefit both the mother and the child. With few exceptions, maternal immunization is not a routine, because of the concerns related to the safety of this intervention. Ethical and cultural issues make the studies on maternal immunization difficult; however, in the last decade, the development of new vaccines, which are very immunogenic and safe has reactivated the discussions on maternal immunization. In this paper we present a review of the literature about maternal immunization based on MEDLINE data (1990 to 2002). The most important conclusions are: 1) there is no evidence of risk to the fetus by immunizing pregnant women with toxoids, polysaccharide, polysaccharide conjugated and inactive viral vaccines; 2) most viral attenuated vaccines are probably safe too, but data is still insufficient to demonstrate their safety; therefore these vaccines should be avoided in pregnant women; 3) in Brazil, there is a need for a maternal immunization program against tetanus. Many new candidate vaccines for maternal immunization are available, but studies should be conducted to evaluate their safety and efficacy, as well as regional priorities based on epidemiological data.

scholarly journals Automated Workflow for Somatic and Germline Next Generation Sequencing Analysis in Routine Clinical Cancer Diagnostics

Cancers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1691
Author(s):  
Muscarella ◽  
Fabrizio ◽  
De Bonis ◽  
Mancini ◽  
Balsamo ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Scale Up ◽  
Cancer Diagnostics ◽  
Sequencing Analysis ◽  
Library Preparation ◽  
Next Generation ◽  
High Quality ◽  
High Coverage ◽  
Dna Recovery ◽  
Generation Sequencing

Thanks to personalized medicine trends and collaborations between industry, clinical research groups and regulatory agencies, next generation sequencing (NGS) is turning into a common practice faster than one could have originally expected. When considering clinical applications of NGS in oncology, a rapid workflow for DNA extraction from formalin-fixed paraffin-embedded (FFPE) tissue samples, as well as producing high quality library preparation, can be real challenges. Here we consider these targets and how applying effective automation technology to NGS workflows may help improve yield, timing and quality-control. We firstly evaluated DNA recovery from archived FFPE blocks from three different manual extraction methods and two automated extraction workstations. The workflow was then implemented to somatic (lung/colon panel) and germline (BRCA1/2) library preparation for NGS analysis exploiting two automated workstations. All commercial kits gave good results in terms of DNA yield and quality. On the other hand, the automated workstation workflow has been proven to be a valid automatic extraction system to obtain high quality DNA suitable for NGS analysis (lung/colon Ampli-seq panel). Moreover, it can be efficiently integrated with an open liquid handling platform to provide high-quality libraries from germline DNA with more reproducibility and high coverage for targeted sequences in less time (BRCA1/2). The introduction of automation in routine workflow leads to an improvement of NGS standardization and increased scale up of sample preparations, reducing labor and timing, with optimization of reagents and management.

scholarly journals Evidence from epidemic appraisals in Nigeria

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Idoteyin O. Ezirim ◽  
Kayode Ogungbemi ◽  
Uduak Daniel ◽  
James Blanchard ◽  
Onoriode Ezire
Keyword(s):  
High Risk ◽  
Rural Areas ◽  
Sex Workers ◽  
Hiv Transmission ◽  
National Level ◽  
Scale Up ◽  
Risk Behaviours ◽  
High Coverage ◽  
Use Of Resources ◽  
General Populations

Although HIV prevalence has increased in most-at-risk populations (MARPs) across Nigeria, effective programming was difficult because Nigeria lacked information for prevention programmes to target interventions that maximise coverage and cost effectiveness. Epidemic appraisals (EA) were conducted in eight states to provide evidence for the planning, implementation and co-ordination of prevention interventions. Component 1: Mapping determined the size, typology and locations of MARPs. Component 2: Venue profiling identified and profiled venues where general populations engaged in high-risk behaviours. Component 3: Rural appraisals provided insights into risk behaviours and sexual networking in villages. States used mapping results to prioritise areas with a MARP coverage of 70% – 80% and then scale up interventions for non-brothel-based female sex workers (FSWs) instead of focusing on brothel-based FSWs. The eight states prioritisedf unding for the high-coverage areas to ensure a minimum coverage level of 70% – 80% of MARPs was reached. The refocused resources led to cost efficiencies. Applying venue profiling results, six states implemented interventions at bars and night clubs – previously not covered. States also maximised intervention coverage for high-risk general populations; this led to the use of resources for general population interventions in a focused way rather than across an entire state. States focused on condom programmes in rural areas. EA results provided the evidence for focusing interventions for high MARP coverage as well as forhigh-risk general populations. The states applied the results and rapidly refocused their interventions, increasing the likelihood of having an impact on HIV transmission in those states. Nigeria is now implementing EAs in the remaining 29 states to effect national-level impact.

scholarly journals Modeling the impact of COVID-19 vaccination in Lebanon: A call to speed-up vaccine roll out

2021 ◽  
Author(s):  
Ghina R Mumtaz ◽  
Fadi El-Jardali ◽  
Mathilda Jabbour ◽  
Aya Harb ◽  
Laith J Abu-Raddad ◽  
...  
Keyword(s):  
Vaccine Coverage ◽  
Vaccination Campaign ◽  
Scale Up ◽  
High Coverage ◽  
Social Distancing ◽  
Epidemic Curve ◽  
Limited Health ◽  
Care Capacity ◽  
The Impact ◽  
Roll Out

Background: Amidst a very difficult economic and political situation, and after a large first SARS-CoV-2 wave near the end of 2020, Lebanon launched its vaccination campaign on 14 February 2021. To date, only 6.7% of the population have received at least one dose of the vaccine, raising serious concerns over the speed of vaccine roll-out and its impact in the event of a future surge. Objective: Using mathematical modeling, we assessed the short-term impact (by end of 2021) of various vaccine roll-out scenarios on SARS-CoV-2 epidemic course in Lebanon. Results: At current immunity levels in the population, estimated by the model at 40% on 15 April 2021, a large epidemic wave is predicted if all social distancing restrictions are gradually eased and variants of concern are introduced. Reaching 80% vaccine coverage by end of 2021 will flatten the epidemic curve and will result in a 37% and 34% decrease in the peak daily numbers of severe/critical disease cases and deaths, respectively; while reaching intermediate coverage of 40% will result in only 10-11% decrease in each. Reaching 80% coverage by end of 2021 will avert 3 times more hospitalizations and deaths over the course of this year compared with 40% coverage. Impact of vaccination was substantially enhanced with rapid scale-up. Reaching 80% vaccine coverage by August would prevent twice as many severe/critical disease cases and deaths than if it were reached by December. Finally, a longer duration over which restrictions are eased resulted in a more favorable impact of vaccination. Conclusion: For vaccination to have an impact on the predicted epidemic course and associated disease burden in Lebanon, vaccination has to be rapid and reach high coverage (at least 70%), while sustaining social distancing measures during roll-out. At current vaccination pace, this is unlikely to be achieved. Concerted efforts need to be put to overcome local challenges and substantially scale up vaccination to avoid a surge that the country, with its multiple crises and limited health-care capacity, is largely unprepared for.

scholarly journals Prevalence of asymptomatic malaria parasitaemia following mass testing and treatment in Pakro sub-district of Ghana

2019 ◽  
Author(s):  
Ignatius Cheng Ndong ◽  
Daniel Okyere ◽  
Juliana Yartey Enos ◽  
Benedicta Ayiedu Mensah ◽  
Alexander Kwadwo Nyarko ◽  
...  
Keyword(s):  
Malaria Control ◽  
Lower Cost ◽  
Health Centre ◽  
Scale Up ◽  
Intermittent Preventive Treatment ◽  
Preventive Treatment ◽  
Asymptomatic Malaria ◽  
Community Based ◽  
High Coverage ◽  
Asymptomatic Parasitaemia

Abstract Background: Global efforts to scale-up malaria control interventions are gaining steam. These include the use of Long-Lasting Insecticide Nets, Intermittent Preventive Treatment and Test, Treat and Track (T3) using ACTs. Intermittent preventive treatment of children (IPTc) in Ghana has demonstrated a parasite load reduction of 90%. However, unanswered questions include – whether mass treatment of population sub-groups such as IPTc could be scaled-up to whole populations as in mass testing, treatment and tracking (MTTT)? What is needed to implement MTTT at scale? Can MTTT reduce asymptomatic parasitaemia levels in children under 15? And whether MTTT of populations complemented by community-based management of malaria (CBMm) using volunteers could be an effective strategy for malaria control at a lower cost. Methods: A population of 5,000 asymptomatic individuals in seven communities in the Pakro sub-district of Ghana participated in this study. A register was developed for each community following a census. MTTT engaged trained community-based health volunteers (CBHVs) who conducted house-to-house testing using RDTs every four months and treated positive cases with ACTs. Between interventions, CBMm was done on symptomatic cases. Results: MTTT Coverage was 98.8% in July 2017 and 79.3% in July 2018. Of those tested, asymptomatic infection with malaria parasites reduced from 1,795 (36.3%) in July 2017 to 1,303 (32.9%) in July 2018. Implementing MTTT significantly averted asymptomatic parasitaemia by 24% from July 2017 to July 2018 after adjusting for age, ITN use and temperature (OR=0.76, CI=0.67, 0.85 p ≤ 0.001). In comparison, treatment of symptomatic patients at the Health Centre reduced parasitaemia by 9% over the same period which was however, not statistically significant (OR=0.91, CI=0.67, 1.38 p = 0.672). A total of 223 (5.1%) cases were averted in children under 15 years (X² = 9.7, p < 0.002). An important observation was a decrease in hospital attendance, which negatively affected the internally generated funds (IGF) scheme of the participating health facilities. Conclusion: This study has demonstrated that implementing MTTT was feasible and could reduce prevalence of malaria asymptomatic parasitaemia in children under 15 years of age. Furthermore, the use of CBHVs could ensure high coverage at lower cost.

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