Correction to: Occurrence and distribution of bovine TB pathology by age, sex, and breed of cattle slaughtered in Gusau Abattoir, Zamfara State Nigeria.

Unfortunately the Abstract was missing in the original version of this article. The Abstract is published below. Abstract. This study was aimed to record gross lesions suggestive of bovine tuberculosis amongst cattle slaughtered in Gusau abattoir Zamfara State, Nigeria.

Survey of bovine tuberculosis in Nigerian beef cattle.

Bovine tuberculosis (bTB) is a zoonotic disease caused by Mycobacterium tuberculosis complex (MTBC) that primarily affects cattle, but also other domestic and wild mammals. In Nigeria, abattoir monitoring of gross bTB lesions is the only control method being applied in all animals. This study aims to investigate tubercle bacilli infection in slaughtered cattle found with visible tuberculosis-like lesions. Lesions suggesting bTB were detected in 226 cattle during abattoir monitoring in Zamfara State, Nigeria. Tissue samples collected from the affected carcasses were subjected to Ziehl-Neelsen stain (ZN). Of the 226 carcasses with lesions, 37 (16.4%) were positive by the Ziehl-Neelsen stain (ZN), and MTBC was detected from 34 (91.9%) of the 37 ZN-positive samples. Molecular typing by region of difference (RD) deletion analysis revealed the genotype of Mycobacterium bovis, Mycobacterium caprae and Mycobacterium tuberculosis. Infection was most significantly associated with age of the animals (OR = 3.49; CI: 1.29-9.47 [p = 0.002]). The findings indicate a serious threat for health as well as for TB control in Nigeria.

Seroprevalence of Brucella antibodies in camels in Katsina State, Nigeria.

A cross-sectional study was carried out to determine the status of Brucella infection in one-humped (Dromedary) camels in the North and Central senatorial districts of Katsina State, Nigeria. Nine hundred and eighty serum samples from live and slaughtered camels were tested. Modified Rose Bengal plate test (RBPT) and serum agglutination test (SAT) with ethylenediaminetetraacetic acid, (EDTA) were used as screening and standard tests, respectively. The prevalence of Brucella antibodies were 110 (11.2%) and 103 (10.5%) for RBPT and SAT, respectively. Of the 472 and 508 serum samples tested from the herds and abattoirs, respectively, 63 (13.3%) and 47 (9.3%) were positive by RBPT while 62 (13.1%) and 41 (8.1%) were positive by SAT, respectively. Based on the results, it was concluded that Brucella antibodies were present in camels in the study area. Poor management practices and mixing of camels with other species of livestock as well as unrestricted movement of camels were proposed to be the reasons for the prevalence of the disease in the study area. In view of the public health importance of the disease, it is recommended that there is the need to develop a strategic plan to decrease spread of brucellosis in the study area.

Occurrence and distribution of bovine TB pathology by age, sex, and breed of cattle slaughtered in Gusau Abattoir, Zamfara State Nigeria.

This study was aimed to record gross lesions suggestive of bovine tuberculosis amongst cattle slaughtered in Gusau abattoir Zamfara State, Nigeria. A total of 3690 bovine carcasses were inspected from April to June, 2014. The results of the postmortem inspection detected tuberculosis-like lesions in 226 (6.1%) carcasses; 126 (56%) of the lesions observed were restricted to the organs/tissues of thoracic cavity and its associated lymph nodes, while 100 (44%) were seen in the organs/tissues of the abdominal cavity and reproductive tract of the carcasses. The organ encountered with most lesions was lungs; 90 (39.82%) out of the 226 lungs from carcasses observed with lesions. The individual animal prevalence was significantly affected by both age (χ2 = 4.723, p = 0.000) and sex (χ2 = 4.457, p = 0.000). For animal level risk, a strong statistically significant association was recorded between age (OR = 2.614, C.I. = 1.223 ­ 3.831) and sex (OR = 2.164, C.I. = 1.223 ­ 3.831); age and sex were predictive of bovine TB pathology. Breed prevalence was found to be 129 (57.1%) for White Fulani, 78 (34.5%) for Sokoto Gudali, and 19 (8.4%) for Red Bororo respectively. This study has for the first time recorded macroscopic lesions compatible with bovine TB; which suggests its possible prevalence in the study area. Postmortem inspection could be applied in the control and eradication of bovine TB and prevent its transmission to humans; in depth study is needed to better ascertain the true cause(s) of TB-like lesions in the area.

Serological evidence of brucellosis in goats in kaduna north senatorial district of kaduna state, Nigeria.

A cross-sectional study was carried out to determine the current status of Brucella antibodies in goats in Kaduna North Senatorial District of Kaduna State, Nigeria. A total of 442 serum samples (31 bucks and 411 does) were screened using Rose Bengal plate test (RBPT), serum agglutination test with ethylene diaminetetraacetic acid (SAT-EDTA), and lateral flow assay (LFA). Results. The prevalence of Brucella antibodies was found to be 25.8%, 11.1%, and 2.5% using RBPT, SAT-EDTA, and LFA, respectively. The prevalence in bucks was 32.3%, 3.2%, and 0.0% and 17.5%, 12.4%, and 3.9% in does using RBPT, SAT-EDTA, and LFA, respectively. The prevalence rates for goats less than one year of age using the tests were 1.5%, 0.0%, and 0.0%. While for those within the age bracket of one to three years, the rates were 19.4%, 10.5%, and 3.5%, respectively. The corresponding values for goats above 3 years of age were 34.2%, 15.2%, and 1.8%, respectively. The prevalence of brucellosis in goats in the study area is high which poses a threat to the development of the livestock industry and is of important zoonotic implications in Nigeria.