Association between Handwashing Behavior and Infectious Diseases among Low-Income Community Children in Urban New Delhi, India: A Cross-Sectional Study

Fecal Carriage of Colibactin-Encoding Escherichia coli Associated With Colorectal Cancer Among a Student Populace

Fecal carriage of the colibactin (clb) gene in Escherichia coli is described as a source that could promote carcinogenesis, progressing to colorectal cancer. The present study investigated the demographic, dietary, and antibiotic consumption variables as correlates for fecal carriage of clb+/E coli among the student populace. In a randomized cross-sectional survey, E coli (N = 136) from the fecal samples of eligible students were characterized and evaluated for antibiotic resistance, β-lactamase (blm), biofilm, virulence factor production, and strain tryptophan reverse mutagenic activity. The encoded clb+/E coli were analyzed for correlates with principal component analysis. Of all the E coli strains, a low rate of 2 clb+/E coli (1.5%) and higher rates of biofilm (13.2%) and blm producers (11.8%) were recorded among the mutant strains as compared with the nonmutant types. All the clb+/E coli showed complete resistance to amoxicillin, Augmentin (amoxicillin and clavulanate), gentamicin, and trimethoprim/sulfamethoxazole. The fecal clb-encoded E coli (1.5%) were not associated with demographic status, fiber-based food (odds ratio [OR], 1.03; 95% CI, 56.74-138.7; P = .213), alcohol (OR, 1.27; 95% CI, 61.74-147.1; P = .221), antibiotic consumptions (OR, 1.11; 95% CI, 61.29-145.3; P = .222), and handwashing (OR, 1.17; 95% CI, 60.19-145.5; P = .216). The hierarchical cluster of blm+/E coli revealed high-level resistance with a multiantibiotic resistance index ≥0.2 (P < .05). Only 12% of all strains were tryptophan mutant/blm+, and 1.5% of clb+/ECblm+ were observed in fecal samples with a 452-base pair size. Trimethoprim/sulfamethoxazole and biofilm production positively regressed with clb expression (P > .05). Principal component analysis score plot indicated an association of clb+/ECblm+ with dietary pattern, alcohol, blm, and hemolysin production. The combined activity of blm and biofilm production in the gut microbiota could promote clb+/E coli colonization, facilitating genotoxin production and possible colorectal cancer induction.

Suboptimal child healthcare practices and the development of multiple infectious diseases in children aged 24-59 months

Background

Infections continue to be a major cause of death among children under the age of five worldwide. This study aimed to identify the factors associated with the development of multiple infectious diseases in children aged 24-59 months in Indonesia.

Methods

Data from the 2018 Basic Health Research conducted by the Ministry of Health, Republic of Indonesia, were used. Information from 39,948 children aged 24-59 months was analyzed. The outcome variable was the development of multiple infectious diseases, that is, acute respiratory infections, pneumonia, pulmonary tuberculosis, diarrhea, and hepatitis, in the month before the survey. Factors significantly associated with multiple types of infectious diseases were examined using logistic regression.

Results

The study found that 76.6% of children aged 24 to 59 months in Indonesia had at least one type of infectious disease. The likelihood of developing multiple types of infectious diseases increased in children whose parents did not practice appropriate handwashing with soap and running water [adjusted odds ratio (aOR) = 1.16, p < 0.001], those who received supplemental food (aOR = 1.38, p < 0.001), those with poor nutritional status (aOR = 1.12, p < 0.001), and those living in urban areas (aOR = 1.07, p = 0.045).

Conclusion

Improving caregivers' awareness of adequate child healthcare practices, in addition to nutrition-sensitive and specific interventions to improve children's nutritional status, is required to prevent children from contracting multiple types of infectious diseases.

Knowledge about Hand Hygiene and Related Infectious Disease Awareness among Primary School Children in Germany

Hand hygiene is a cornerstone of infection prevention. However, few data are available for school children on their knowledge of infectious diseases and their prevention. The aim of the study was to develop and apply a standardized questionnaire for children when visiting primary schools to survey their knowledge about infectious diseases, pathogen transmission and prevention measures. Enrolling thirteen German primary schools, 493 questionnaires for grade three primary school children were included for further analyses, comprising 257 (52.1%) girls and 236 (47.9%) boys with an age range of 8–11 years. Out of 489 children, 91.2% participants indicated that they knew about human-to-human transmissible diseases. Of these, 445 children responded in detail, most frequently mentioning respiratory and gastrointestinal diseases, followed by childhood diseases. Addressing putative hygiene awareness-influencing factors, it was worrisome that more than 40.0% of the children avoided visiting the sanitary facilities at school. Most of the children (82.9%) noted that they did not like to use the sanitary facilities at school because of their uncleanliness and the poor hygienic behavior of their classmates. In conclusion, basic infection awareness exists already in primary school age children. Ideas about the origin and prevention of infections are retrievable, however, this knowledge is not always accurate and adequately contextualized. Since the condition of sanitary facilities has a strong influence on usage behavior, the child’s perspective should be given more consideration in the design and maintenance of sanitary facilities.