Contagious caprine pleuropneumonia (CCPP): A systematic review and meta-analysis of the prevalence in sheep and goats. 2021

Md Ahaduzzaman
Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh.

Contagious caprine pleuropneumonia (CCPP) is a highly contagious respiratory disease of small ruminants that is caused by the bacterium Mycoplasma capricolum subsp. capripneumoniae. Sheep and goats are two of the species of small ruminants most at risk of CCPP. Outbreaks of CCPP cause significant economic and trade disturbances in several parts of the world. However, the extent and magnitude of CCPP in a particular geographical region is still not well known due to lack of comprehensive data on its occurrence. The present study aimed to investigate the prevalence of CCPP in sheep and goats raised in different geographical regions as well as the factors contributing to the spread of the disease. Searches were done in five online repositories: PubMed, Web of Science, Scopus, CAB Direct and Google Scholar using pre-selected key terms. Data were retrieved from the 41 articles that met the study's inclusion criteria. The pooled prevalences were determined using a random effect meta-analysis model. Prevalence of CCPP was 23.19% (95% CI: 11.90-34.47%) in sheep and 24.91% (95% CI: 20.99-28.84%) in goats. Overall, the regional level pooled prevalence estimates ranged from 8.0% (95% CI: 6.91-9.09%) to 28.70% (22.02-35.38%), depending on species and world region. Substantial heterogeneity (I2  > 75%) was observed in most pooled prevalence estimates. The results indicate high prevalences of CCPP in sheep and goats across the regions, particularly in Africa and Asia, and highlights the need to institute appropriate control measures. Active surveillance and research on risk factors are recommended.

UI MeSH Term Description Entries
D009174 Mycoplasma A genus of gram-negative, mostly facultatively anaerobic bacteria in the family MYCOPLASMATACEAE. The cells are bounded by a PLASMA MEMBRANE and lack a true CELL WALL. Its organisms are pathogens found on the MUCOUS MEMBRANES of humans, ANIMALS, and BIRDS. Eperythrozoon,Haemobartonella,Mycoplasma putrefaciens,PPLO,Pleuropneumonia-Like Organisms,Pleuropneumonia Like Organisms
D011002 Pleuropneumonia, Contagious A pleuropneumonia of cattle and goats caused by species of MYCOPLASMA. Contagious Pleuropneumonia,Contagious Pleuropneumonias,Pleuropneumonias, Contagious
D006041 Goats Any of numerous agile, hollow-horned RUMINANTS of the genus Capra, in the family Bovidae, closely related to the SHEEP. Capra,Capras,Goat
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012756 Sheep Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS. Ovis,Sheep, Dall,Dall Sheep,Ovis dalli
D012757 Sheep Diseases Diseases of domestic and mountain sheep of the genus Ovis. Ovine Diseases,Disease, Ovine,Disease, Sheep,Diseases, Ovine,Diseases, Sheep,Ovine Disease,Sheep Disease
D015511 Goat Diseases Diseases of the domestic or wild goat of the genus Capra. Caprine Diseases,Caprine Disease,Disease, Caprine,Disease, Goat,Diseases, Caprine,Diseases, Goat,Goat Disease
D015995 Prevalence The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given time. Period Prevalence,Point Prevalence,Period Prevalences,Point Prevalences,Prevalence, Period,Prevalence, Point,Prevalences
D034561 Sheep, Domestic A species of sheep, Ovis aries, descended from Near Eastern wild forms, especially mouflon. Mouflon,Ovis ammon aries,Ovis aries,Ovis aries musimon,Ovis gmelini musimon,Domestic Sheep,Mouflons

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