Infections transmitted via the faecal-oral route: a simple score for a global risk map

Examining the psychosocial drivers of handwashing behaviour among school children

Aim

Handwashing with soap remains the single most cost-effective strategy for reducing the spread of infectious diseases. From our scoping search, no study was identified which examined the predictors of children's handwashing behaviour within the context of the Health Belief Model (HBM) and Theory of Planned Behaviour (TPB) combined. This paper contributes to bridging this gap in literature. We sought to examine variables emanating from the HBM and TPB which could potentially predict handwashing behaviour; determine whether behavioural intention will potentially predict behaviour; and identify school children's motivation for proper handwashing behaviour.

Subject and Methods

Data were collected from 717 school children recruited from four basic schools. A structured questionnaire was used for data collection. Data were analysed using multi-variable linear regression models.

Results

Participants' knowledge of hand hygiene failed to predict behavioural intention and handwashing behaviour. As regards participants' perception of severity, there was an association with behavioural intention in a crude model, but this was not so in an adjusted model. Also, perception of severity was not associated with handwashing behaviour. Attitude to handwashing (β = 0.120, 95% CI [0.00, 0.24] p = 0.046), possession of handwashing skills (β = 0.037, 95% CI [0.01, 0.07] p = 0.008), and subjective norms (β = 0.263, 95% CI [0.20, 0.33] p < 0.001) were among the psychosocial variables that showed potential for predicting both behavioural intention and behaviour. The TPB's intention-behaviour relationship was corroborated by our results. Among others, motivation for adherence to proper handwashing behaviour included the desire to make hands smell better.

Conclusion

Interventions targeting the handwashing behaviour of school children should consider strategies that move beyond mere knowledge improvement, but rather target attitude and skill enhancement strategies implemented in partnership with 'significant others' such as teachers, and adult peers.

Pick fecal microbiota transplantation to enhance therapy for major depressive disorder

In recent years, fecal microbiota transplantation (FMT) has emerged as a promising therapy for major depressive disorder (MDD). The goal of the operation is to restore a healthy gut microbiota by introducing feces from a healthy donor into the recipient's digestive system. The brain-gut axis is thought to have a significant role in regulating mood, behavior, and cognition, which supports the use of FMT in the treatment of MDD. Numerous studies have shown a correlation between abnormalities of the gut microbiota and MDD, whereas FMT has demonstrated the potential to restore microbial equilibrium. While FMT has shown encouraging results, it is crucial to highlight the potential hazards and limits inherent to this therapeutic approach. Stool donor-to-recipient disease transfer is a concern of FMT. Furthermore, it still needs to be determined what effect FMT has on the gut microbiota and the brain in the long run. This literature review provides an overview of the possible efficacy of FMT as a therapeutic modality for MDD. There is hope for patients who have not reacted well to typical antidepressant therapy since FMT may become an invaluable tool in the treatment of MDD as researchers continue to examine the relationship between gut microbiota and MDD.

Typhoid Fever and Non-typhoidal Salmonella Outbreaks: A Portrait of Regional Socioeconomic Inequalities in Brazil

Typhoid fever occurs in an endemic form in Brazil and is a serious public health problem in some regions. In this scenario, further research is urgently needed to identify the associations between socioeconomic factors and typhoid fever, contributing to guiding policy decisions in the country. We aimed to investigate the influence of socioeconomic disparities on the prevalence of typhoid fever and non-typhoidal Salmonella (NTS) in Brazil. A search for data from 2010 to 2019 was carried out with the national health and human development agencies. As milk and derivatives are the fourth food incriminated in food outbreaks in Brazil, analyses for detecting Salmonella spp. in commercial dairy products allowed us to assess whether the outbreaks associated with these foods are due to inadequacies in sanitary control in dairy establishments or whether they are mainly home-based outbreaks. Predictive models validated by the bootstrapping method demonstrate an association of NTS prevalence reduction with improvements in the Sanitation Service Index (Rv ≥  -8 0.686; p ≤ 0.01) and Municipal Human Development Index - MHDI - (Rv =  -0.789; p ≤ 0.02). In the North, typhoid fever prevalence had seasonal variability with the rainfall, while sanitation services (Rv ≥-0.684; p ≤ 0.04) and MHDI (Rv ≥-0.949; p ≤ 0.003) directly influenced Northeast and South Brazil. Thus, the unequal distribution of investments in the sanitation sector contributed to disparities in typhoid fever prevalence among Brazilian regions. The absence of Salmonella spp. in commercial samples ratified the collected data that the outbreaks of Salmonella spp. in the Brazilian population occur mainly at residences. These findings show that implementing public health education and increasing investments in sanitation in regions with poor service can control outbreaks of Salmonella spp. in Brazilian endemic areas.