The answer is all of the above
They depended on charity.
Because Portugal became one of the most important allies of Spain. The prime minister of Portugal knwon as Salazar was supporting the army of Franco. Many dissidents of Portugal were protected in Spain and, even though the relations were a little bit tense, Portugal gave their full support giving aircraft as an aid to Franco in Spain. Salazar<span> reassured Franco and his allies that no interference would hinder the supply traffic directed to the Nationals. </span>
<span>Oligarchy</span><span>
We can be sure that ancient civilizations knew of and were concerned about infectious diseases from several facts. The hunter gatherers rarely suffered from water borne diseases. They knew that the water that stank or did not taste well was not good to intake. Their main knowledge came from experience. During the Greek period several doctors like Alcmaeon of Croton were mentioned and hence they must have had the knowledge about infectious diseases like Cholera. Several other infectious disease treatment have also been mentioned during the Greek period. </span>
