Rumours, mistrust hinder Brazil yellow fever vaccine campaign
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SAO PAULO — Elisangela Santos doesn't understand why everyone in her
"Every year, it's something else," the 44-year-old school custodian said as she waiting recently outside a health post in the Jardim Miriam district. "They invent another thing to make Brazilians spend money."
The vaccine is free at public health posts around the country, but Santos' suspicion that someone must be profiting somewhere is typical of the current high levels of mistrust Brazilians hold for officialdom. Flagging faith in Brazil's institutions amid a series of corruption scandals, a chaotic communications campaign promoting the vaccine, and the country's decision to give partial doses to stretch supplies are contributing to
That misinformation is scaring people away from the campaign that is trying to vaccinate more than 23 million people in areas of Rio de Janeiro, Sao Paulo and Bahia states that until recently were not considered at risk for yellow fever. Nearly six weeks into the campaign, the Health Ministry says 76
The current atmosphere of uncertainty and
The reticence could even lead to a sustained outbreak in Brazil's megacities. Brazil hasn't had an urban outbreak since 1942.
"If we have a higher number of infected people with yellow fever and the Aedes aegypti mosquito starts to become infected and transmit yellow fever, it could become urban," said Luiz Antonio Teixeira Jr., Rio de Janeiro state's health secretary. "Everything we're doing is to ensure we don't have urban yellow fever."
Yellow fever has long been endemic in large swaths of Brazil, but it has been advancing in recent years and this is the second outbreak in two years in places where vaccinations for the disease were not routine. During the 2016-2017 outbreak, more than 770 people were infected after nearly a decade during which Brazil saw fewer than 10 cases each year. In the current outbreak, there have already been 846 cases confirmed, of which 260 have died. The outbreak is stressing the health system just a few years after a major outbreak of Zika, which was linked to severe birth defects in babies born to infected mothers.
WhatsApp "is a fundamental characteristic of the way we circulate information, news, etc.," said Sacramento, who works in the institute's health communications lab. Since WhatsApp messages come from people known by the recipients, they place a high value on the information shared there, and that means people often accept it without checking it, Sacramento said.
Misinformation has even been circulating among health professionals, some of whom have resisted giving partial-dose vaccines, said Ana Goretti, the interim
The vaccination efforts have also been chaotic. Earlier this year, Brazilians encountered hours-long waits at some health posts before turnout fell precipitously. Many people outside a health post in Jardim Miriam complained that the first post they went to was out of the vaccine. Another woman said her son got vaccinated without presenting a vaccination card but her daughter was turned away for not having it.
Overcoming concerns about the vaccine is particularly important because yellow fever does not appear to be shrinking back to its usual habitat in Brazil's wilder interior. The Health Ministry is even considering extending routine vaccination to all Brazilians, and it has already decided to offer vaccination to all children starting later this year, Goretti said.
The ministry and state health departments are using Twitter and Facebook to promote the vaccination campaign and to share links to information about the vaccine and the disease. Members of the ministry's social media team have also responded to some concerns on the ministry's Facebook page. But they have not been systematically using social media networks or WhatsApp to combat the
"There are lots of things on the internet," said da Silva, who lives on Sao Paulo's southern outskirts. "They think it's a fraud because it's fractional."
Scientists have expressed confidence that the one-fifth dose works and the World Health Organization has said it can be used in emergencies. It's still unclear how long the protection lasts. Brazilian officials say they have data — which will soon be published — that shows the vaccine is good for at least eight years, but others have been more cautious, and more studies on its long-term effectiveness are expected.
The yellow fever vaccine, like all vaccines that use live virus, can cause adverse reactions or even make you sick with a disease similar to yellow fever. Susan McLellan, who is a professor of infectious diseases at the University of Texas Medical Branch, says the yellow fever vaccine may even cause more vaccine-linked disease than other live virus vaccines.
But "in an epidemic setting, in a high risk setting, you're a lot safer with the vaccine than the disease," said McLellan, who until recently was the director of Tulane University's Travel Clinic.
Da Silva, whose family is resisting getting vaccinated, said he, too, had concerns but opted to get it in the end.
"I heard about people getting sick" from the vaccine, he said of his initial reticence. "But if a mosquito bites me, I'm already at risk."
Associated Press producer Yesica Fisch in Rio de Janeiro contributed to this report.
Sarah DiLorenzo on Twitter: www.twitter.com/sdilorenzo