Two deaths from yellow fever this year were confirmed by the government of São Paulo. In total, four people were infected. One of the deaths occurred in the state, but the victim was a resident of Minas Gerais. São Paulo had no cases of the disease since 2020, when a record was confirmed. From January to March 2023, vaccination coverage for yellow fever was 82%. In 2022, this percentage was 64.4%. The State Department of Health recalls that vaccination against the disease is part of the immunization schedule and is available at all health centers. The first dose should be administered at 9 months of age and the second at 4 years of age. From the age of 5, for those who do not have the vaccine up to date, only a single dose is recommended. The secretariat points out that, since the first case, it has reinforced vaccination, in addition to carrying out epidemiological investigation and raising awareness of the health network to detect suspicious situations early. Symptoms Yellow fever is an acute infectious disease that progresses rapidly and is highly lethal in its most severe forms. It presents symptoms such as sudden fever, chills, headache, body pain, nausea, vomiting and weakness. It has a seasonal pattern, with most cases between December and May. Prevention is the vaccine. Infection occurs through wild mosquitoes, which live in forest areas and do not inhabit the urban environment of cities. History After approximately half a century of epidemiological silence, the yellow fever virus was detected again in 2000, in the state of São Paulo. Since its reintroduction, four outbreaks have been reported, with over 600 confirmed cases. Epidemic events of the disease were also recorded, starting in 2014, in Goiás and Tocantins, and continued towards the states of the Southeast and South.
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