The Ministry of Health of the Nation recommended to the Argentines that they travel to any of these twenty states of Brazil (Rorama, Amapá, Amazonas, Pará, Acre, Rondónia, Mato Grosso, Mato Grosso Do Sul, Maranhão, Tocantins, Goiás , São Paulo, Paraná, Santa Catarina, Rio Grande do Sul, Piaui (West and South), Bay, Mines Gerais, Espíritu Santo and Rio de Janeiro) to vaccinate against yellow fever at least 20 days before leaving.
This recommendation generated an unusual increase in the demand for the doses of these vaccines in vaccinations in Buenos Aires in recent days. In Missions, although there was an increase in the demand for the yellow fever vaccine, it was not so significant. One of the reasons is that 96% of the provincial population is already immunized against this disease. It is worth clarifying that the vaccination certificate is not a requirement of entry to Brazil. Although those who travel through Paraguay to or from North Brazil, if they have to prove the vaccines, at the disposal of the Paraguayan authorities.
Every ten years or just one time?
Before 2016, a reinforcement of the yellow fever vaccine was recommended every ten years. However, as of July this year, the World Health Organization (WHO) stipulated that the period of validity of all vaccination certificates against yellow fever, including those already issued as new ones, 10-year steps to the entire life of the vaccinated person.
WHO provides information to tourists about the care they need to avoid yellow fever and other vector diseases when they visit countries at risk of transmission (Https://www.argentina.gob.ar/sites/default/files/0000001383cnt-2018-11_ith-country-list-nov-2018.pdf). For tourists over nine months who want to visit Argentina, the WHO recommends that they be vaccinated against yellow fever if their destiny will be the provinces of Currents and Missions.
The epidemiological situation
In Brazil, the yellow fever transmission area expanded in the last three years: it began in the north and expanded east to the south, affecting mainly the states of the midwest region. The cases registered in 2016, 2017 and 2018 exceeded cases reported in the last 50 years.