Key result
Epidemiological and scientific data on avian infectious bronchitis virus variants in African countries are poor and not updated, though variants continue to appear regularly.
Provides an overview of the distribution and variants of Avian infectious bronchitis virus in Africa, highlighting the lack of updated epidemiological data.
Infectious bronchitis virus (IBV) is worldwide in distribution, highly infectious, and extremely difficult to control because it has extensive genetic diversity, a short generation time, and a high mutation rate. IBV is a Gammacoronavirus, single-stranded, and positive-sense RNA virus. Avian infectious bronchitis is well studied in European countries with identification of a large number of IBV variants, whereas in African countries epidemiological and scientific data are poor and not updated. However, previous studies reported that an IBV variant continues to appear regularly in Africa, as currently described in Morocco. No cross-protection between IBV strains was reported, some being unique to a particular country, others having a more general distribution. This review aims to provide a general overview on IB disease distribution in African countries and an update on the available studies of IBV variants in each country.
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Khataby et al. (2016) conducted a review in Avian infectious bronchitis. Epidemiological and scientific data on avian infectious bronchitis virus variants in African countries are poor and not updated, though variants continue to appear regularly.
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