PATH is an international, nonprofit global health organization. PATH is based in Seattle with 1,600 employees in more than 70 countries around the world. Its president and CEO is Nikolaj Gilbert, who is also the Managing Director and CEO of Foundations for Appropriate Technologies in Health (FATH), PATH's Swiss subsidiary. PATH focuses on six platforms: vaccines, drugs, diagnostics, devices, system, and service innovations.

RTS,S/AS01 is a recombinant protein-based malaria vaccine. It is one of two malaria vaccines approved. As of April 2022, the vaccine has been given to 1 million children living in areas with moderate-to-high malaria transmission, with millions more doses to be provided as the vaccine's production expands. 18 million doses have been allocated for 2023-2025. It requires at least three doses in infants by age 2, with a fourth dose extending the protection for another 1–2 years. The vaccine reduces hospital admissions from severe malaria by around 30% and reduces toddler deaths by 15%.