Background: Brucellosis is a zoonotic pathogen responsible for great economic losses in most sub-Saharan nations. Although Ghana has successfully implemented the "One Health" initiative for the control of some emerging infectious zoonotic diseases with pandemic potential like Avian Influenza, there is very limited data available on brucellosis especially human brucellosis prevalence. He objective of his study is to determine the seroprevalence of human and bovine brucellosis as well as the predisposing factors at the community level in the North Tongu District of Ghana. Materials and Methods: Rose Bengal Plate test (RBPT) was used to analyze blood samples from 178 cattle farmers, and 315 cattle. The positive samples were further confirmed with cELISA. Predisposing factors were determined by questionnaires administered to cattle farmers. All sample sites were geo-referenced. Results: Human and bovine brucellosis seroprevalence using RBPT were 10.1% and 22.9% respectively. Eighty six percent (62/72) of bovine cases were confirmed with ELISA. Delivery assistants were more likely to be infected (p=0.043) with odds ratio of 2.7. Out of the human cases (18), males constituted 88.9%. Ages 11-20 years recorded 77.7% seropositivity whilst cattle drovers represented 44.5% (8/18) of positives. Significant risk factors in cattle were herd size (p=0.037), history of retained placenta (0.000) and abortion (0.005). Conclusion: Bovine and human brucellosis is prevalent in North Tongu district, Ghana. Close contact with parturient cows was a major predisposing factor for human infection. Early referral of positive persons to the Hospital for confirmation and treatment is required to comply with the "One Health" initiative on brucellosis and other zoonoses.
Antimicrobial use in food animal production could lead to the occurrence of antimicrobial residues in the animal products. In Ghana, there is no monitoring program for antimicrobial residue in foods of animal origin. We determined the types of antimicrobial drugs used in poultry production in Dormaa municipality and the levels of residue found in poultry products. Performing a cross-sectional study, a structured questionnaire and direct observation methods were used to assess antimicrobial usage, knowledge of and adherence to withdrawal periods in randomly selected poultry farms. Eggs and ready-for-sale broilers were purchased from selected respondents’ farms for detection and quantification of residues using the microbial inhibition plate assay. A total of 132 farmers were interviewed from 115 farms. Farms (86%) administered drugs to birds for prophylactic purposes. A total of 28 (24.3%) farms had tetracycline residue in eggs, 25 (21.7%) in kidney and 14 (12.2%) in liver. Mean (±s.d.) tetracycline concentration (μg/g) found were: eggs 0.02 ± 0.003; kidneys 0.02 ± 0.01; and liver 0.01 ± 0.008. Twenty-six farms (92.9%; ρ > 0.05) that had residues in eggs had sold eggs during treatment of the laying birds. A disinfectant and two antibiotics in human formulations were administered to birds in 44.3%, 17.4% and 2.6% farms respectively on an extra-label basis. Tetracyclines were the main antimicrobial drugs used in poultry farming in the study area with little or no regard to withdrawal periods. Tetracycline residue was found in poultry but below the Maximum Residue Level set by Codex Alimentarius. Extra-label use of disinfectant to water-medicate birds poses a health hazard to farmers and consumers alike.
Q fever is a zoonotic disease caused by Coxiella burnetii, a causative agent of abortion in livestock and febrile illness in humans. Outbreaks of human cases of Q fever have been reported in Australia and the Netherlands, which was linked to abortions in goat and sheep farms. In Ghana, information on Q fever in both livestock and humans is scanty. This study sought to determine the seroprevalence of Q fever in livestock in the Tongu area of the Volta region of Ghana. It was a cross sectional study with blood sampled from 204 cattle, 158 sheep and 100 goats. An indirect ELISA test was performed to detect Q fever antibodies in the serum of livestock. A total of 20 farms were sampled across the municipalities and an overall prevalence of Q fever was 21.6%. Specie‐specific prevalence was 28.4% (45/158) for sheep, 21.7% (45/204) for cattle and 10% (10/100) for goats. Abortions were reported on all the farms sampled and most farmers lived in close proximity to the farms sampled. Q fever is prevalent in the North Tongu area and requires the attention of the veterinary and health authorities, using the One‐ Health approach in order to control its occurrence and save lives.
Toxocariosis and ancylostomosis remain the most important parasitic infections affecting companion animals worldwide and pose a risk to animal and human health. Information on these infections in dogs in Ghana is inadequate. A cross sectional study was undertaken to determine the occurrence of gastrointestinal helminths infections and management practices of dogs in the Greater Accra Region (GAR) of Ghana. Faecal samples were obtained from 380 dogs from communities in 11 out of 16 districts in the GAR. Coprological examination of the samples was performed using the modified McMaster technique. Management practices for control of helminths in dogs were assessed through questionnaire interviews of the dog owners. Most dogs (70.7%) were kept for security reasons and were not housed (61.8%). Prevalence of gastrointestinal helminths was 62.6%. Hookworm eggs were found in 178 (46.8%) dogs, Toxocara canis eggs in 22 (5.8%) and mixed infections of hookworms and T. canis in 38 (10.0%). Dipylidium caninum was found in 51 (13.4%) dogs, while Isospora species was in 33 (8.5%) dogs. Most households (68%; 133/194) of the sampled dogs had at least a child below the age of 5 years. Hookworm, T. canis and D. caninum were the zoonotic gastrointestinal helminths prevalent in dogs in the study area. Lack of housing for dogs creates ideal conditions for infection and spread of the zoonotic parasites.
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