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Chile is experiencing unusual days, and not only because July closed with temperatures of up to 27 degrees in Santiago, the capital, in weeks that are deeply wintery: the goal of vaccinating more than 80% of the population against Covid-19 has been achieved. , the country launched this week to apply third doses.
"Booster dose!" Announces the promotion of the government, which on Wednesday the 11th began to administer the third puncture to those over 86 years of age and next week will advance with the group of over 55s. Uruguay, the other country that heads the figures for the vaccinated population in Latin America, will begin to apply third doses this Monday.
The Chilean context is conducive to advancing in something that almost no country has yet put into practice.
More than 82% of the population already received two doses of the Coronavac vaccine, with a small percentage applying the Cansino single dose, both of Chinese origin.
After becoming one of the hardest hit countries in the world, with 45,000 deaths, Covid cases fell sharply, with a 1.57% chance, which means that the vaccination plan is working.
shield, weak?
But a series of studies in the hands of the Ministry of Health of the Chilean country confirmed that the effectiveness of the vaccines is falling six months after having been applied: «A third dose of the Coronavac vaccine 28 days after the second dose increased the antibodies neutralizers (...).
In the groups that received a booster dose six months after the second dose, it is shown that at 14 days the antibody levels tripled that reached in the groups that received a third dose 28 days after completing the regimen. two doses.
The vaccine chosen for the third or booster dose will be the British one from AstraZeneca, and for certain special groups (diseases that make individuals more vulnerable), the American one from Pfizer-BioNTech.
Chile signed an agreement with the Chinese laboratory Sinovac to install in Antofagasta, in the north of the country, a plant that will produce up to 60 million vaccines a year.
In addition to Chile, Sinovac is also present in Mexico, Colombia, Ecuador, Brazil and Uruguay.
The government of Sebastián Piñera, which is in its final stretch in a presidential election year, plans to inoculate about two million people with the third dose in the next two weeks, more than 10% of the population in a country of 19 millions of inhabitants.
Enrique Paris, the Minister of Health, also anticipated that in October children between three and 11 years of age will begin to be vaccinated "for the peace of mind of mothers, because it is also very important that young children are vaccinated."
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