Correction: Brucellosis testing patterns at health facilities in Arusha region, northern Tanzania

• AbdulHamid Settenda Lukambagire, 
• Gabriel Mkulima Shirima, 
• Damas Davis Shayo, 
• Coletha Mathew, 
• Richard B. Yapi, 
• Christopher Jacob Kasanga, 
• Blandina Theophile Mmbaga, 
• Rudovick Reuben Kazwala, 
• Jo E. B. Halliday