According to the Association for Professionals in Infection Control and Epidemiology (APIC), a recent study in the American Journal of Infection Control (AJIC) suggests that portable thermal-imaging cameras might provide a new approach to assessing and improving hand hygiene practices among health care professionals.

The study explored the use of thermal imaging to determine if alcohol-based sanitizer had been applied to fingertips and thumbs. According to the report, these specific areas are often missed by health care personnel.

Temperature Identifies Sanitizer Use

A thermal camera attached to a smart phone was used to obtain thermal images of volunteers’ dominant hands before and after using an alcohol-based sanitizer. Temperature readings of the mid-palm area, and tips of the third finger and the thumb were recorded before and at multiple time points after sanitizing.

In 11 of 12 volunteers, thermal images confirmed a visual assessment of sanitizer coverage through significant decreases in mid-palm, finger, and thumb temperatures. When hand sanitizer was used without including the thumb, a lack of colorimetric temperature change in the thumb was visible. For volunteers with “cold” fingers at the baseline, assessing the alcohol-based sanitizer coverage was more difficult.

Potential Method of Hand Hygiene Assessment

The study concluded that thermal imaging showed promise for the assessment of proper hand hygiene compliance. It further stated that additional studies involving a larger number of persons under varying conditions are needed to establish thermal imaging for practical use.

“Effective hand hygiene is recognized as the single most important act to prevent the transmission of potentially pathogenic microbes in the health care setting, but there is no widely adopted method for assessing the effectiveness of healthcare professionals’ hand hygiene technique,” said Dr. John Boyce, M.D., a study author. “Our study shows that thermal imaging shows promise as an approach that warrants additional research to determine if it can be used for routine monitoring of hand hygiene technique to improve patient care.” 

Two UC Davis custodial teams—Facilities Management and Student Housing and Dining Services—have been named the recipients of the university’s Staff Assembly 2021–22 Citation of Excellence team award.

The two teams, consisting of 350 total members, were honored for delivering exceptional service to university students and staff throughout the COVID-19 pandemic.

“This award recognizes individuals and staff teams who have demonstrated outstanding achievements that go above and beyond the requirements outlined in their position descriptions,” said Jennifer Jackson, 2021–22 UC Davis Staff Assembly chair. “Given what these teams have done for the health and safety of our community, it’s difficult to imagine a more qualified recipient.”

In 2020, more than 50 team members volunteered to clean and sanitize UC Davis Health in Sacramento, as well as student housing used for quarantine and on-campus isolation purposes. The teams later expanded their operations to deliver COVID-19 testing and vaccinations at multiple locations throughout the school’s Davis, California campus.

“Day in and day out, with no opportunity to work from home, these teams showed up to work in person, every single day,” said Kirsten DePersis, executive director of operations for UC Davis Facilities Management. “Classes were remote, but our laboratories and researchers remained, and our hospital—faced with critical staffing shortages—urgently needed their assistance.”