US Secretary of State Marco Rubio's escalating campaign against Cuban medical missions reveals a dangerous willingness to weaponize healthcare in pursuit of regime change.

On August 13, US Secretary of State Marco Rubio delivered a calculated blow against Cuba's global medical programme, revoking visas for Brazilian officials Mozart Julio Tabosa Sales and Alberto Kleiman—architects of the Mais Médicos program that brought over 10,000 Cuban doctors to Brazil's remote regions between 2013 and 2018.