Work by the universities of Venda and Limpopo has highlighted various bacterial pathogens isolated from mastitis-positive bovine milk samples in African dairy systems from 2013 to 2023. https://www.frontiersin.org/journals/animal-science/articles/10.3389/fanim.2026.1744414/full Celtic has a wide range of PCR tests for mastitis: https://celticdiagnostics.com/collections/youseq