Cyanobacteria HABs (CyHABs or CyanoHABs) typically occur in nutrient rich, warm surface water bodies and can produce potent toxins. Occurrence of CyHABs is increasing globally, and blooms are accompanied by sporadic reports of human and animal illnesses and deaths. This webinar will summarize the state of the science and describe how a One Health approach to CyHABs can inform human health risks.