Only 256 thousand children and adolescents received the second dose in the cities of São Paulo selected for the campaign
Only 10.65% of children and adolescents in the State of Saint Paul who are part of the target audience to be vaccinated against denguestarted in February 2024, completed the vaccination program with the two recommended doses of Qdenga vaccine.
Around 2.4 million children and adolescents aged between 10 and 14 live here cities selected in the immunization strategy and should receive the vaccine. However, according to the data, only 256,000 have received the second dose State Department of Health of São Paulo (SES-SP).
The first dose was applied to approximately 593 thousand people, equal to 24.68% of the eligible population. This means that only 43% of those who received the first shot returned for the second shot, which should ideally be given three months later.
In capitalwhere the reference target is estimated at 600 thousand children and adolescents, 229 thousand first doses were administered (38.16%) and only 128 thousand second doses (21.33%).
The low immunization rate puts young people at risk, the group that records the highest number of dengue hospitalizations after the elderly, a group for which the vaccine has not been released by the health authorities. National Health Surveillance Agency (Anvisa).
From agreement with Takeda81% efficacy was demonstrated in reducing symptomatic dengue 30 days after the first dose. However, according to the pharmaceutical company, there are no studies that confirm its medium or long-term effectiveness for those who have stopped there. This is because 95% of participants in Qdenga’s development research took both doses, and therefore analysis of those who only took the first dose is limited.
In the first two epidemiological weeks of 2025 alone, the state recorded 30,375 suspected cases of the disease, according to the Ministry of Health’s arbovirus panel. Two deaths have been confirmed and 54 are under investigation, according to the department’s system.
What does the government say?
The SES reported that with each new vaccine shipment from the Ministry of Health, it offers guidance to municipalities. When asked about the possibility of actively searching for non-immunized young people, the ministry stated that it is up to municipal administrations to define territorial strategies.
“The dengue immunizer is distributed and purchased by Ministry of Health (MS), the State is responsible for disbursing it to the Municipalities. Furthermore, each city is responsible for the vaccination strategy, according to the federal agency’s guidelines,” he said in a statement.
The municipal management of São Paulo, for its part, specified that the Municipal Immunization Program (PMI) “continues to carry out active research through home visits carried out by the Family Health Strategy (FSE) teams, through telephone calls, sending SMS, also to the ‘Vaccination D-Days’ strategy, with the opening of all UBS on Saturdays”.
There is a vaccine in the capital available in basic health units (UBS)active from Monday to Friday, and at the Integrated Ambulatory Medical Assistance (AMA), open from Monday to Saturday. The service is active from 7:00 to 19:00.
Source: Terra
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