Face touching: A frequent habit that has implications for hand hygiene
Open accessAbstract
Background There is limited literature on the frequency of face-touching behavior as a potential vector for the self-inoculation and transmission of Staphylococcus aureus and other common respiratory infections. Methods A behavioral observation study was undertaken involving medical students at the University of New South Wales. Their face-touching behavior was observed via videotape recording. Using standardized scoring sheets, the frequency of hand-to-face contacts with mucosal or nonmucosal areas was tallied and analyzed. Results On average, each of the 26 observed students touched their face 23 times per hour. Of all face touches, 44% (1,024/2,346) involved contact with a mucous membrane, whereas 56% (1,322/2,346) of contacts involved nonmucosal areas. Of mucous membrane touches observed, 36% (372) involved the mouth, 31% (318) involved the nose, 27% (273) involved the eyes, and 6% (61) were a combination of these regions. Conclusion Increasing medical students' awareness of their habituated face-touching behavior and improving their understanding of self-inoculation as a route of transmission may help to improve hand hygiene compliance. Hand hygiene programs aiming to improve compliance with before and after patient contact should include a message that mouth and nose touching is a common practice. Hand hygiene is therefore an essential and inexpensive preventive method to break the colonization and transmission cycle associated with self-inoculation.
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A human normally touches their face on an average 23 times an hour.
“A human normally touches their face on an average 23 times an hour (Kwok et al., 2015).”
From Understanding coronaphobia (2020) · cites this paper as Kwok et al., 2015
The Abstract Results and Results report an average of 23 face touches per hour, but this was observed in 26 medical students. The claim presents that study-specific average as what a human normally does, which the paper does not establish for people generally. (LLM, conf=0.88)
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- Authors
- Kwok, Y. L. A., Gralton, J., & McLaws, M.-L.
- Affiliations
- UNSW Sydney (AU)
- ORCID
- McLaws, Mary-Louise
- Venue
- American Journal of Infection Control
- Publisher
- Elsevier BV
- Published
- 2015-02
- Volume
- 43
- Issue
- 2
- Pages
- 112-114
- ISSN
- 0196-6553 (ISSN-L)
- PMC
- PMC7115329
- OpenAlex
- W2047381373
- Cited by
- 402
- References
- 22
- Citations by year
- 2026: 9 · 2025: 7 · 2024: 24 · 2023: 37 · 2022: 60 · 2021: 119 · 2020: 129 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 5 · 2015: 1 · 2012: 1
- FWCI
- 3.37
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- American Journal of Infection Control (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- University of New South Wales
- Topics
- Health Sciences › Medicine › Infectious Diseases › Infection Control in Healthcare
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Infection Control and Ventilation
- Life Sciences › Agricultural and Biological Sciences › Food Science › Food Safety and Hygiene
- Keywords
- face touching, hand hygiene compliance, autoinoculation, medical students, infection control, respiratory infections
- MeSH terms
- Face, Habits, Humans, Students, Medical, Occupational Health, Hand Hygiene
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