Due to its close proximity to the summer season, the Ministry of Health (12) allowed the population living in the regions with advice for the yellow fever vaccine to follow the dose before the important period of transmission of the disease. December and March.
Newly populated areas, such as Rio de Janeiro, Minas Gerais and Sao Paulo, remain with a large number of people who are not vaccinated and at risk of becoming ill.
"The disease has a high fatality of about 40%, which makes the situation even more serious," the ministry said in a statement.
The purpose of the alert is to seek vaccination and avoid long lines, according to the folder itself. The vaccination coverage for yellow fever should be at least 95% of the population.
Since the outbreak in December of last year, vaccination against the disease has been expanded to reach 4,469 municipalities, including 940 cities near the capitals of the Southeast and South regions, where it has expanded and has a viral circulation.
The vaccine is available in the National Immunization Calendar and is distributed to the states on a monthly basis. According to the ministry in 2018, 30 million doses were sent to the whole country. "Despite this existence, there is a low population demand for vaccination. The ministry should take the dose at least 10 days before moving to the proposed areas.
The target population for vaccination against yellow fever includes those who have been vaccinated for no longer than 9 months of age. Since April 2017, Brazil has adopted a single-dose regimen of vaccines supported by studies aimed at preserving vaccine life, as recommended by the World Health Organization (WHO).
Data from the folder shows that 271 suspected cases of yellow fever between July 1 and November 8 were reported in humans, 150 of them were discarded, 120 were under investigation and one was confirmed. During the same period, 1,079 epizootics have been reported – death of non-human primates.
"The data indicate the continuation of the viral circulation in the low formation period (June-September) when low temperatures and precipitation often imply less favorable conditions for transmission," the ministry said.
The bulletin also confirms the first death of yellow fever in the second half of this year. The case was recorded with possible infection in the city of Caraguatatuba, São Paulo, and was detected months before apes emerged. Epizootics were recorded in the states of Rio de Janeiro, Minas Gerais and Mato Grosso.
Between 1 July 2017 and 30 June this year, 1,376 cases of yellow fever and 483 deaths were reported. In total, 7,518 suspected cases of 5,364 were reported and 778 were still being investigated. Since the beginning of the year (January 1 – November 8), 1,311 yellow fever cases and 450 deaths have been confirmed in the country. In the same period last year, 795 cases and 262 deaths were reported.