Sero-prevalence study to determine the effectiveness of Peste de Petits Ruminants vaccination in Somalia

Njue, Sophycate; Saeed, Khalid; Maloo, S.H.; Muchai, Joan; Biaou, Cyprien; Tetu, Kennedy

doi:10.1186/s13570-018-0122-8

Cited by 8 publications

(8 citation statements)

References 20 publications

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“…Two serological surveys were conducted before and after the vaccination campaigns, where a two-stage cluster sampling methodology was used to collect 20,000 sera samples for analysis. The results showed an overall increase in individual animal seroprevalence from 62 to 76% after the PPR vaccination campaign [71]. As a result, about 25 outbreaks were reported to OIE from 2015 to 2019.…”

Section: Implementation Of Vaccination Campaignsmentioning

confidence: 92%

Progress towards Eradication of Peste des Petits Ruminants through Vaccination

Zhao

Njeumi

Parida

et al. 2021

Viruses

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Peste des petits ruminants (PPR) is a transboundary viral disease that threatens more than 1.74 billion goats and sheep in approximately 70 countries globally. In 2015, the international community set the goal of eradicating PPR by 2030, and, since then, Food and Agriculture Organization of the United Nations (FAO) and World Organization for Animal Health (OIE) have jointly developed and implemented the Global Control and Eradication Strategy for PPR. Here, data from the United Nations Food and Agriculture Organization Statistical Database (FAOSTAT), the OIE World Animal Health Information System (WAHIS), Regional Roadmap Meetings, and countries’ responses to PPR Monitoring and Assessment Tool (PMAT) questionnaires were analyzed to inform on current progress towards PPR eradication. OIE recorded the use of over 333 million doses of vaccine in 12 countries from 2015 to 2018, 41.8% of which were used in Asia and 58.2% in Africa. Between 2015 and 2019, a total of 12,757 PPR outbreaks were reported to OIE: 75.1% in Asia, 24.8% in Africa, and 0.1% in Europe. The number of global outbreaks in 2019 fell to 1218, compared with 3688 in 2015. Analysis of vaccine use and PPR outbreaks in countries indicates that disease control strategies, particularly vaccination campaigns and vaccine distribution strategies, still require scientific evaluation. It is imperative that vaccination is undertaken based on the epidemiology of the disease in a region and is coordinated between neighboring countries to restrict transboundary movements. Strengthening surveillance and post-vaccination sero-monitoring at the national level is also essential. The PPR vaccine stock/bank established by FAO, OIE, and other partners have improved the quality assurance and supply of vaccines. However, to achieve PPR eradication, filling the funding gap for vaccination campaigns and other program activities will be critical.

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Section: Implementation Of Vaccination Campaignsmentioning

confidence: 92%

Progress towards Eradication of Peste des Petits Ruminants through Vaccination

Zhao

Njeumi

Parida

et al. 2021

Viruses

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“…Regional seroprevalence of PPR has been reported in several research papers (M Abubakar & Munir, 2014;Muhammad Abubakar et al, 2008;Njue et al, 2018;Nkamwesiga et al, 2019;Opasina & Putt, 1985;Sow et al, 2008;Waret-Szkuta et al, 2008). For our purpose, we increased the prevalence from 0 to 0.7, to show the impact of extreme values of PPR prevalences.…”

Section: Model Parametrizationmentioning

confidence: 97%

Impact of Peste des Petits Ruminants for sub-Saharan African farmers: a bioeconomic household production model

Lhermie

Raboisson

Waret-Szkuta

et al. 2020

Preprint

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Peste des petits ruminants (PPR) is a contagious disease affecting small ruminants. It has been targeted by the global community for eradication within the next 10 years. Implementing eradication requires significant financial efforts, human resources, coordination among actors, and individual commitments. The objective of this study is to estimate the cost of PPR at household level, thereby providing economic information about the potential benefits for small ruminant keepers of PPR control and management strategies. Fifteen Sub-Saharan countries are included in this study, for which publicly available household level data assembled by FAO were used. We built a bioeconomic model to estimate the impact of PPR for a standardized theoretical area where each household raises an average herd comprising either 6 goats or 3 sheep and their offspring. We then used the outputs of the model to estimate the income loss due to PPR at household level. We constructed different income scenarios to account for the variability of small ruminant income in total annual income. The household income losses ranged from 0.6 to 44.8 percent of the total annual income. The percentages vary depending on the income scenario and on the gross annual economic impact of PPR on small ruminant production, which ranges from 25 to 80 percent based on the results of the bioeconomic model. Regardless of the income scenario, households in lower income quintiles are relatively more affected by PPR than households in upper quintiles. As expected, the more small ruminant production contributes to household income the greater the impact. We provide here estimates that may help, from a policy perspective, identifying the most relevant strategies and tailoring them at regional level to mitigate PPR impacts.

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“…The disease spreads quickly in susceptible ruminant species, and the highest number of outbreaks occurs in sheep and goats [21]. The disease is associated with high mortality and morbidity rates in naïve populations [22], signi cant economic losses, reduced production and productivity as well as high control costs [20,23]. It has devastating consequences on families and communities in particular and countries in general.…”

Section: Introductionmentioning

confidence: 99%

“…Peste des petits ruminant (PPR) is regarded as the most economically signi cant widespread and highly contagious viral disease of small ruminant species, particularly goats in areas where these animals are intensively reared. It continues to cause the death of millions of sheep and goats annually and is a constant threat to the livelihoods of subsistence farmers in many agro-ecological zones of Ethiopia ( [20,21]. The disease spreads quickly in susceptible ruminant species, and the highest number of outbreaks occurs in sheep and goats [21].…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence and Associated Risk Factors of Peste des Petits Ruminants Among Ovine and Caprine in Selected Districts of Afar Region, Ethiopia

Dubie

Dagnew

Gelo

et al. 2022

Preprint

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Background: Peste des petits ruminant (PPR) is an acute, highly contagious and economically important transboundary viral disease of small ruminants. Despite the fact that FAO and OIE plan to eradicate the disease by 2030, some studies indicated an increasing seropositivity of the PPR infection in sheep and goats in Ethiopia. A cross-sectional study was employed to estimate the seroprevalence of PPR and to assess risk factors during the study period, February to April, 2020. A total of 384 serum samples were collected from apparently healthy sheep and goats. Competitive Enzyme Linked Immunosorbent Assay was used to detect the presence of antibodies against PPR at national veterinary institute. Descriptive statistics, Pearson’s chi‑square (X2) and logistic regression analysis were used is this study.Results: The overall animal level seroprevalence of PPR virus was found to be 60.15% (n=231/384) and species level prevalence rate was found to be 38.18% (n= 42) in sheep and 68.98% (n= 189) in goats in the study areas. Among the associated risk factors considered; species, sex, age and herd sizes were significantly associated (P<0.05) with PPR disease occurrence. Among the associated risk factors considered in this study, species, sex, age and herd size were found to be statistically associated with the seropositivity of PPR infection. There was no statistically significant difference in the seroprevalence of the disease between study areas and body condition score in this study. Conclusion: The present study finding revealed that a higher seroprevalence of PPR virus infection and this confirms PPR virus is widely prevalent in small ruminants and circulating in Afar region. Further studies should be carried out on the entire region to determine PPR seroprevalence and to develop appropriate control and eradication strategies of PPR disease.

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Sero-prevalence study to determine the effectiveness of Peste de Petits Ruminants vaccination in Somalia

Cited by 8 publications

References 20 publications

Progress towards Eradication of Peste des Petits Ruminants through Vaccination

Progress towards Eradication of Peste des Petits Ruminants through Vaccination

Impact of Peste des Petits Ruminants for sub-Saharan African farmers: a bioeconomic household production model

Seroprevalence and Associated Risk Factors of Peste des Petits Ruminants Among Ovine and Caprine in Selected Districts of Afar Region, Ethiopia

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