Poor Hygiene Increases Bacterial Outbreak Risk in Brazilian Households

A nationwide survey of 5,000 Brazilian households has found that a significant number of people engage in improper food hygiene and handling practices at home, which increases the risk of bacterial outbreaks and foodborne disease (FBD).

The study examined food hygiene, handling, and storage habits across all regions of Brazil and included participants from various income levels. The findings were reported in an article published in the journal Food and Humanity.

Study Scope and Institutional Support

The research was conducted by specialists affiliated with the Food Research Center (FoRC). The FoRC is one of the Research, Innovation, and Dissemination Centers (RIDCs) that receive support from the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP).

To gather data, researchers used an online questionnaire consisting of 29 questions. This form was distributed via email lists and online channels. To ensure that the results were socioeconomically and regionally representative of the Brazilian population, a company was hired to conduct the sample survey.

Improper Food Handling Behaviors

The survey identified concerning gaps in population behavior regarding how food is managed within the home. Researchers highlighted specific improper practices that contribute to the risk of bacterial outbreaks, such as washing meat in the kitchen sink and failing to properly wash vegetables.

The data revealed that only 38% of the participants properly sanitized their vegetables. This finding is particularly notable given the timing of the data collection, which took place from September 2020 to April 2021.

During this period, the COVID-19 pandemic was ongoing, and households were generally taking heightened hygiene precautions to prevent infection with the SARS-CoV-2 virus. Despite this environment of increased attention to cleanliness, a majority of participants still failed to properly sanitize vegetables.

Socioeconomic Factors and Data Gaps

The study noted a correlation between income levels and food safety practices, finding that higher-income families tended to use safer food handling methods.

Uelinton Manoel Pinto, the coordinator of the study and a researcher affiliated with the FoRC, noted that while it was already known that some people do not follow appropriate hygiene practices, detailed data on these specific behaviors was previously limited.

We already knew that people tend not to follow all the most appropriate hygiene and food handling practices, but the available information on these behaviors, which endanger food safety, was still scarce

Uelinton Manoel Pinto

By identifying these specific behavioral gaps, the research provides a clearer picture of the factors that increase the risk of foodborne disease outbreaks in households across Brazil.