Sero-prevalence, cross-species infection and serological determinants of prevalence of Bovine Coronavirus in Cattle, Sheep and Goats in Ghana

Vet Microbiol. 2020 Feb:241:108544. doi: 10.1016/j.vetmic.2019.108544. Epub 2019 Dec 3.

Abstract

Cattle, goats and sheep are dominant livestock species in sub-Saharan Africa, with sometimes limited information on the prevalence of major infectious diseases. Restrictions due to notifiable epizootics complicate the exchange of samples in surveillance studies and suggest that laboratory capacities should be established domestically. Bovine Coronavirus (BCoV) causes mainly enteric disease in cattle. Spillover to small ruminants is possible. Here we established BCoV serology based on a recombinant immunofluorescence assay for cattle, goats and sheep, and studied the seroprevalence of BCoV in these species in four different locations in the Greater Accra, Volta, Upper East, and Northern provinces of Ghana. The whole sampling and testing was organized and conducted by a veterinary school in Kumasi, Ashanti Region of Ghana. Among sampled sheep (n = 102), goats (n = 66), and cattle (n = 1495), the seroprevalence rates were 25.8 %, 43.1 % and 55.8 %. For cattle, seroprevalence was significantly higher on larger farms (82.2 % vs 17.8 %, comparing farms with >50 or <50 animals; p = 0.027). Highest prevalence was seen in the Northern province with dry climate, but no significant trend following the north-south gradient of sampling sites was detected. Our study identifies a considerable seroprevalence for BCoV in Ghana and provides further support for the spillover of BCoV to small ruminants in settings with mixed husbandry and limited separation between species.

Keywords: Africa; Bovine Coronavirus; Ghana; Global health.

MeSH terms

  • Age Distribution
  • Animals
  • Cattle
  • Cattle Diseases / epidemiology*
  • Cattle Diseases / immunology
  • Cattle Diseases / transmission
  • Cattle Diseases / virology
  • Cluster Analysis
  • Coronavirus Infections / epidemiology
  • Coronavirus Infections / immunology
  • Coronavirus Infections / transmission
  • Coronavirus Infections / veterinary*
  • Coronavirus, Bovine / immunology*
  • Cross-Sectional Studies
  • Female
  • Ghana / epidemiology
  • Goat Diseases / epidemiology*
  • Goat Diseases / immunology
  • Goat Diseases / transmission
  • Goat Diseases / virology
  • Goats
  • Lactation
  • Male
  • Multivariate Analysis
  • Risk Factors
  • Seroepidemiologic Studies
  • Sex Distribution
  • Sheep
  • Sheep Diseases / epidemiology*
  • Sheep Diseases / immunology
  • Sheep Diseases / transmission
  • Sheep Diseases / virology