Covid vaccines are under development in several countries, and the Pan American Health Organization (PAHO) seeks to guarantee supply to all countries when they are available.
Health officials reported that 93 percent of the people who died from influenza last year were not vaccinated, despite the fact that because all were members of high-risk groups, they were eligible to receive the vaccination for free.
This year the Caja will use the vaccine produced for the southern hemisphere, rather than the one produced for the northern hemisphere. Authorities hope the change will protect more Costa Ricans against getting the flu.