They are programs of collective immunization organized by the Ministry of health of Colombia and the departmental secretariats of health, with the use of vaccines. The object is to eliminate the risk of outbreaks of infectious diseases that are controlled, but by migration of foreigners, can cause outbreaks in unvaccinated population. The high flow of Venezuelan and Brazilian border has forced to restart vaccination of reinforcement against diseases that we currently have controlled and even eradicated in Colombia (for example measles, whooping cough).
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