Descriptive epidemiology of the outbreak of avian influenza in Nigeria: a retrospective review, 2015-2017

Chieloka, Okoli Solomon

doi:10.11604/pamj-oh.2021.6.11.31265

Cited by 5 publications

(7 citation statements)

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“…Other states in the south south region in Nigeria which have similar vegetation to that of Rivers state also experienced high number of monkey pox cases ( 16 ). The finding corroborates what has been established in the literature where higher number of Monkey-pox cases were reported in the southern than the northern regions in Nigeria ( 17 , 18 ).…”

Section: Discussionsupporting

confidence: 92%

“…The finding that more cases of Monkey-pox among persons aged 20–40 years which are active youths corroborates other studies that found persons within the same age-range reporting more cases of Monkey-pox ( 17 , 22 ). Early studies found that more Monkey-pox cases were reported more in children between the ages of 3–4 years and 5–6 years this differs from our study ( 24 , 25 ).…”

Section: Discussionsupporting

confidence: 89%

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Epidemiology of human Monkey-pox cases in Rivers State, Nigeria January 2017-June 2022

Onu

Golden

Wali

et al. 2023

Front. Public Health

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The resurgence in monkey pox disease has posed a global health threat. Nigeria recorded increased number of reported monkey pox cases in 2017, with cases occurring in subsequent years. Notably, cases of monkey pox had been reported in western countries from an epidemiologically linked traveler with a travel history to Nigeria. The highest burden of cases of monkey pox is recorded in River state, Nigeria. Consequently, there is the need to examine the epidemiology of monkey pox according to time, place, person and geography in Rivers state. A retrospective analysis of monkey pox cases was conducted based on the data obtained from the Rivers State Disease Surveillance and Notification unit from January 2017-June 2022. A total of 112 suspected cases were reported during this period of which 49 (44%) were confirmed by laboratory diagnosis. Obio-Akpor (29) and Port Harcourt (9) Local Government Areas which make up the urban centers of the state recorded most cases of monkey pox. More males (36) were affected than females (10), and the age group mostly affected was from 20 to 29 years, however increased cases of monkey pox was found in the months of September to November in most of the years reviewed. Monkey pox is prevalent in Rivers state, although the pattern follows a declining trend. Therefore, the state government should put appropriate mechanisms in place to eradicate the disease.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 89%

Epidemiology of human Monkey-pox cases in Rivers State, Nigeria January 2017-June 2022

Onu

Golden

Wali

et al. 2023

Front. Public Health

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“…This detection of H5 and H9 hemagglutinin (HA) surface protein indicative titers in this pilot survey further confirms occurrence and co-infection of H5N8, H5N6 and H9N2 strains have being circulation in Live Bird Markets (LBM) since 2015-2017 outbreaks (Chieloka, 2021) as LBMs has been previously reported as potential reservoir and source for H9 strains (Sulaiman et al, 2021) associated with immense poultry trade activities (Fusaro et al, 2019) due to poor biosecurity compliance enhancing the survivability of HPAI virus capacity to evolve into other subtypes through genetic assortment as suggested (Meseko et al, 2023), hence the reports of H5/H9 confection in this study. The co-circulation of H5 and H9 subtypes has a potential emergence of a reassortant highly pathogenic AI subtypes/strain of zoonotic epidermics.…”

Section: Resultssupporting

confidence: 78%

“…The dense and unregulated poultry markets in the country also contribute to the rapid dissemination of the virus. This has resulted in several outbreaks of avian influenza due to illegal trade of poultry products, lack of awareness among farmers on biosecurity measures, emergence of new strains of avian influenza and poor surveillance and monitoring of the virus (Chieloka, 2021). Sustained national control efforts has led to resounding collaborations with international organizations of UNDP such as the Food and Agriculture Organization (FAO) and the World Health Organization (WHO) since the 2006 outbreaks in order to enhance surveillance, capacity building, and technical support.…”

Section: Introductionmentioning

confidence: 99%

“…These collaborations have contributed to improved control and preventive measures (Olabode, 2009), prior to the HPAI (H5N1) resurgence (Monne et al, 2015). However, outbreaks still occur recently amidst the COVID pandemic (Omotayo et al, 2022) which necessitated this surveillance study in AMAC a cosmopolitan settlement in FCT that borders Plateau state a known AI hotspot (Chieloka, 2021). In order to identify circulating avian influenza strains with pandemic potential among poultry flock and assessment of value chain stakeholder awareness about possible zoonosis.…”

Section: Introductionmentioning

confidence: 99%

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Sero-Survey of Avian Influenza Disease Virus in Live Bird Markets and Farmers Appraisal within Abuja Municipal Area Council, Nigeria

H.O.K,

Echioda-Ogbole

et al. 2023

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Avian Influenza (AI) virus is a transboundary animal disease of international food and biosecurity importance characterized by recurrent outbreaks in many countries where the virus is still endemic. This purposive sero-surviellance study was conducted to detect the presence of AI antibodies in chickens and AI appraisal of poultry farmers' knowledge, attitude and practice in Abuja Municipal Area Council, Nigeria. One hundred (100) blood samples collected randomly post slaughter from chickens in live bird markets were screened and characterized using Agar Gel Immuno Diffusion and Haemagglutination Inhibition Tests at the Avian Influenza laboratory, of the National Veterinary Research Institute, Vom Plateau State. A structured Questionnaire was also administered to 50 poultry farmers. Results revealed an overall sero-prevalence of 5% with H5 and H9 haemagglutinating inhibiting antibody titre ranging from 1 log2-5 log2. Breed specific sero-prevalence were 4% and 16% for local and exotic (layers) chickens respectively, while broilers showed no detectable antibodies. Questionnaire responses indicated low awareness level on the zoonotic potential of AI but high level of awareness on the economic impact of the disease. In conclusion, this study provides preliminary information on the occurrence of Avian Influenza virus H5 and H5/H9 co-infection and circulation in chickens characterized by poor zoonotic awareness of the disease within Abuja Municipal Area Council. Hence, there is a need to conduct further molecular studies to establish the circulating viral field strains for comparism with empirical vaccine strains and create more public enlightenments and awareness campaign about the disease burden and possible zoonotic impact.

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Rational approach to vaccination against highly pathogenic avian influenza in Nigeria: a scientific perspective and global best practice

Meseko,

Ameji,

Kumar

et al. 2023

Arch Virol

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Descriptive epidemiology of the outbreak of avian influenza in Nigeria: a retrospective review, 2015-2017

Cited by 5 publications

References 0 publications

Epidemiology of human Monkey-pox cases in Rivers State, Nigeria January 2017-June 2022

Epidemiology of human Monkey-pox cases in Rivers State, Nigeria January 2017-June 2022

Sero-Survey of Avian Influenza Disease Virus in Live Bird Markets and Farmers Appraisal within Abuja Municipal Area Council, Nigeria

Rational approach to vaccination against highly pathogenic avian influenza in Nigeria: a scientific perspective and global best practice

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