HomeTop NewsWorldHigher COVID-19 cases and deaths seen in counties where Brazil’s Bolsonaro won

Higher COVID-19 cases and deaths seen in counties where Brazil’s Bolsonaro won

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A study of 853 counties in Minas Gerais state found that counties that voted for Brazilian President Jair Bolsonaro in the 2018 election had a higher incidence and death rate from COVID-19.

Researchers from Sociedade Mineira de Infectologia and Associaço Mineira de Epidemiologia e Controle de Infecçes show a link between Brazilian President Jair Bolsonaro’s denialist attitude toward COVID-19 and higher COVID-19 incidence and mortality in a study to be presented at this year’s ECCMID in Portugal (23-26 April).

The study, involving 853 counties in Minas Gerais (the second most populous state located in southeastern Brazil), finds that in Bolsonaro voting counties, COVID-19 cases and deaths were substantially higher than in counties where Bolsonaro lost the 2018 presidential election vote.

“The role of politics had a critical impact on COVID-19 responses to the pandemic in Brazil from the outset”, say Dr Carlos Starling from Sociedade Mineira de Infectologia. “President Jair Bolsonaro has denied COVID-19 severity, promoted treatments without evidence of efficacy, and discouraged social distancing, the use of masks, local lockdowns and other protective measures, which has likely resulted in higher infection rates and deaths from COVID-19 among his supporters.”
The death toll from Covid-19 in Brazil has passed 659,000, the third highest reported toll of any country in the world [1].

In this study, researchers investigated the effectiveness of COVID-19 vaccines in reducing virus transmission and deaths from COVID-19 in 853 counties in Minas Gerais. They also explored the impact of the President’s denialist attitude to COVID-19 on vaccine uptake and COVID-19 cases and deaths, based on whether Bolsonaro had won or lost the 2018 presidential election in these counties.

Using data on confirmed cases of COVID-19 and deaths, vaccination rates, and 2018 election results from official government websites, the researchers calculated the COVID-19 incidence rate (new cases per 100,000 residents in the last 14 days) and mortality rate (deaths per 1,000,000 residents in the last 14 days) for each county between 21st January, 2021 (when vaccination started in Brazil), and 10th November, 2021.

Results showed that by 10th November 2021, over half the population (more than 55%) in most counties (682/853) had been fully vaccinated with either Astrazeneca (41%), Pfizer (32%), or Coronavac (28%; see figure 1 in notes to editors).

Overall, the analyses found that the vaccination rate between January and November was similar between counties (see table 1 in notes to editors). As the percentage of the population fully vaccinated against SARS-CoV-2 increased over time, COVID-19 incidence and mortality rates consistently declined (see figure 2).

However, in counties where Bolsonaro won the electoral vote, the COVID-19 incidence rate was 30% higher (7.6%; 1,284,454 cases/16,961,800 residents of 445 counties) than in counties where he lost the vote (5.6%; 249,704 cases/4,450,502 residents of 408 counties; see table 2).

Moreover, the COVID-19 death rate was 60% higher in counties with the highest electoral support for Bolsonaro compared to those with the least support  (212 deaths by COVID-19 per 100,000 inhabitants vs 132 deaths by COVID-19 per 100,000 inhabitants; see table 3).

Researchers also performed a more detailed evaluation comparing the impact of vaccination on COVID-19 incidence and death rates in 33 counties with more than 100,000 residents, and discovered a negative correlation between vaccination and COVID-19 cases and deaths in all 33 counties (ie, counties with the lowest vaccination rates had the highest case incidence and mortality rates), except for five cities where there was a negative, but nonsignificant correlation between the full vaccination rate and the death rate.

“It’s likely that thousands of lives have been lost unnecessarily because President Bolsonaro dismissed COVID-19 as ‘a little flu’ and rallied against lockdowns, school closures and other protective measures”, say Dr Braulio Couto Associação Mineira de Epidemiologia e Controle de Infecções. “However, our results indicate that the Brazilian people have great trust in vaccines, and Bolsonaro’s falsehoods and doubts about COVID-19 vaccines did not prevent mass vaccination, with the increasing vaccination rate over time consistently reducing COVID-19 cases and deaths.”

Image Credit: Getty

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