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[Bacterial colonization after applying an educational program: A quasi-experimental study].

Raul Montalvo1, Salome Ochoa2, Carmen Baltazar3

  • 1Facultad de Medicina Humana, Universidad Nacional del Centro del Perú, Huancayo, Perú. Adress: Avenida Mariscal Castilla 3909, El Tambo, Huancayo, Perú. Email: otivo3@hotmail.com. ORCID: 0000-0003-0227-8850.

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Summary
This summary is machine-generated.

An educational handwashing program improved high-school students' knowledge but did not significantly reduce bacterial colonization on hands. Further interventions like direct supervision may be needed to decrease infectious bacteria.

Keywords:
handsinfectionprogramhygiene

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Area of Science:

  • Public Health
  • Infectious Disease Prevention
  • Microbiology

Background:

  • Educational interventions are key to raising public awareness and promoting behavioral changes.
  • Hand hygiene is a critical component of infection control in various settings.

Purpose of the Study:

  • To evaluate the effectiveness of an educational handwashing program on reducing bacterial colonization on the hands of high-school students.
  • To assess the impact of the program on students' knowledge and attitudes towards hand hygiene.

Main Methods:

  • A non-randomized quasi-experimental study involved high-school students divided into intervention and control groups.
  • Bacterial samples from the dominant hand were cultured before and after the educational intervention.
  • A questionnaire assessed hand hygiene knowledge and attitudes pre- and post-program.

Main Results:

  • The most common bacteria identified were Staphylococcus epidermidis and Staphylococcus aureus.
  • While the educational program improved understanding of hand hygiene, the average number of bacterial colonies showed a non-significant decrease (236 vs. 183, p=0.35).
  • Significant reductions in Staphylococcus epidermidis (39% to 23%) and Staphylococcus aureus (21% to 15%) were observed, but overall colonization was not significantly reduced.

Conclusions:

  • The educational handwashing program successfully enhanced students' knowledge and attitudes regarding hand hygiene.
  • The intervention alone was insufficient to significantly reduce bacterial colonization on students' hands.
  • Future strategies should incorporate additional measures, such as direct supervision, to achieve a more substantial reduction in bacterial contamination.