Observations on rinderpest and rinderpest-like diseases throughout West and Central African countries during rinderpest eradication projects

Couacy‐Hymann, Emmanuel; Bodjo, Sanne Charles; Koffi, M.Y.; Danho, T.

doi:10.1016/j.rvsc.2006.12.010

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…There is evidence for infection in several African countries, although there do not appear to be any previous reports of the virus from Cameroon. It has been reported from a number of other African countries including South Africa [10], Zambia [11] and Ivory coast[12]. However there appears to be little recent data for Africa and in particular nothing on the molecular types circulating in the region.…”

Section: Introductionmentioning

confidence: 99%

Seroepidemiology of Bovine Viral Diarrhoea Virus (BVDV) in the Adamawa Region of Cameroon and Use of the SPOT Test to Identify Herds with PI Calves

et al. 2011

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Bovine viral diarrhoea, caused by the bovine viral diarrhoea virus (BVDV) in the Pestivirus genus of the Flaviviridae, is one of the most important diseases of cattle world wide causing poor reproductive performance in adult cattle and mucosal disease in calves. In addition it causes immunosuppression and increased susceptibility to other infections, the impact of which is uncertain, particularly in sub-Saharan Africa where animals are exposed to a much wider range and higher intensity of infections compared to Europe. There are no previous estimates of the seroprevalence of BVDV in cattle in Cameroon. This paper describes the serological screening for antibodies to BVDV and antigen of BVDV in a cattle population in the Adamawa Region of Cameroon in 2000. The estimates of herd-level and within herd seroprevalences adjusted for test imperfections were 92% and 30% respectively and 16.5% of herds were classed as having a persistently infected calf (PI) in the herd within the last year based on the “spot” test approach. There was evidence of clustering of herds with PI calves across the north and west of the Region which corresponds with the higher cattle density areas and of self-clearance of infection from herds. A multivariable model was developed for the risk of having a PI calf in the herd; proximity to antelope, owning a goat, mixing with 10 other herds at grazing and the catchment area of the veterinary centre the herd was registered at were all significant risk factors. Very little is known about BVDV in sub-Saharan Africa and these high seroprevalences suggest that there is a large problem which may be having both direct impacts on fertility and neonate mortality and morbidity and also indirect effects through immunosuppression and susceptibility to other infections. Understanding and accounting for BVDV should be an important component of epidemiological studies of other diseases in sub-Saharan Africa.

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Section: Introductionmentioning

confidence: 99%

Seroepidemiology of Bovine Viral Diarrhoea Virus (BVDV) in the Adamawa Region of Cameroon and Use of the SPOT Test to Identify Herds with PI Calves

et al. 2011

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“…FMD is caused by a single‐stranded RNA virus of the Apthovirus genus in the Picornaviridae family called the foot‐and‐mouth disease virus (FMDV) (Belsham, 1993). Poliovirus, the most well‐known close relative of FMDV, and rinderpest, an unrelated RNA virus with similar host range and clinical signs, have been eradicated from much of the world’s susceptible populations through global vaccination campaigns (Aylward et al., 2003; OIE, 2006; Couacy‐Hymann et al., 2007). FMD control, however, presents different challenges because of FMDV’s host range, which includes several wildlife reservoirs (Vosloo et al., 2002), and antigenic variability (Paton et al., 2005).…”

Section: Introductionmentioning

confidence: 99%

Analytical Epidemiology of Genomic Variation among Pan Asia Strains of Foot-and-Mouth Disease Virus

Garabed

Johnson

Thurmond

2009

Transboundary and Emerging Diseases

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Genetic data from field isolates of foot-and-mouth disease virus (FMDV) have been used to trace the source of recent outbreaks of FMD, to design better vaccines and diagnostic tests for FMDV, and to make conclusions regarding the general variability in the FMDV genome. Though epidemiologic data associated with FMDV isolates are available, these data have been used rarely to explore possible associations of epidemiologic factors with evolution or variation of the FMDV genome. In this study, factors associated with variation in the primary immunogenic peptide gene of FMDV (VP1), for a sample of 147 serotype O, Pan Asia strain sequences were explored using traditional analytical epidemiologic methods: logistic regression and multinomial-response logistic regression. Hypothesized factors included host type (bovine, ovine, buffalo, or porcine) and geographical region (Middle East, South Asia, East Asia, Southeast Asia, and Europe). Results of two regression analyses suggest that host type and region, considered to be possible surrogates for host management, may be associated with selection in the VP1 amino acid sequence in FMDV. For example, isolates from cattle and sheep in South Asia appear to converge with a proposed ancestor sequence, whereas isolates from the same species in the Middle East and Southeast Asia appear to diverge. The methods demonstrated here could be used on a more detailed dataset to explore the selective pressure of host immunity on the evolution of FMDV antigens in an endemic setting. More broadly, epidemiologic methods could be applied extensively to molecular data to explore the causes of genomic variation in disease-causing organisms.

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Seroprevalence and Associated Risk Factors of Bovine Viral Diarrhea in Dairy Cattle in Around Nekemte Town, East Wallaga, Oromiya Regional State, Ethiopia

Bulcha

Abebe

Garoma

et al. 2023

Preprint

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Observations on rinderpest and rinderpest-like diseases throughout West and Central African countries during rinderpest eradication projects

Cited by 3 publications

References 6 publications

Seroepidemiology of Bovine Viral Diarrhoea Virus (BVDV) in the Adamawa Region of Cameroon and Use of the SPOT Test to Identify Herds with PI Calves

Seroepidemiology of Bovine Viral Diarrhoea Virus (BVDV) in the Adamawa Region of Cameroon and Use of the SPOT Test to Identify Herds with PI Calves

Analytical Epidemiology of Genomic Variation among Pan Asia Strains of Foot-and-Mouth Disease Virus

Seroprevalence and Associated Risk Factors of Bovine Viral Diarrhea in Dairy Cattle in Around Nekemte Town, East Wallaga, Oromiya Regional State, Ethiopia

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