Most Read Articles
3 days ago
Tetanus toxoid 5 Lf, diphtheria toxoid 2 Lf, pertussis toxoid 2.5 mcg, filamentous haemagglutinin 5 mcg, fimbriae types 2 and 3 5 mcg, pertactin 3 mcg
Pearl Toh, 22 Oct 2020
The combination therapy comprising carfilzomib, cyclophosphamide and dexamethasone (KCd) is effective, with a tolerable safety profile, in an Asian cohort with high-risk multiple myeloma (MM) — thus providing a more economical alternative as a potential upfront regimen in resource-limited settings, according to leading experts during a myeloma education webinar.
Jairia Dela Cruz, 3 days ago
The selective serotonin reuptake inhibitor escitalopram holds promise in the prevention of Alzheimer’s disease, reducing amyloid-β-42 levels in cerebrospinal fluid and brain tissue in older adults with normal cognitive function, according to recent evidence.
Roshini Claire Anthony, 13 Nov 2020

Diabetes is a key risk factor for heart failure (HF), which is the leading cause of hospitalization in patients with or without diabetes. SGLT-2* inhibitors (SGLT-2is) have been shown to reduce the risk of hospitalization for HF (HHF) regardless of the presence or absence of diabetes.

Face shield minimizes spread of SARS-CoV-2, hospital-acquired infections

Jairia Dela Cruz
09 Nov 2020

Wearing of face shields proves golden as a preventive measure, reducing not only the number of SARS-CoV-2 infections but also that of hospital-acquired infections (HAIs) among healthcare personnel (HCPs), as shown in a study reported at the 2020 virtual ID Week meeting.

At one hospital in Texas, US, the weekly positivity rate for SARS-CoV-2 rose from 0 percent to 12.9 percent in the preintervention period (April 17–July 5), then fell sharply to 2.3 percent following the implementation of universal face shield wearing (July 6–26). [IDWeek 2020, LB-16]

HAI cases followed the same pattern, increasing from 0 to 5 in the preintervention period and dropping back to 0 during the intervention period.

These favourable results may be attributed to a reduction in viral transmission, according to presenting author Dr Mayar Al Mohajer from the Baylor College of Medicine in Houston.

Al Mohajer pointed out that in their 500-bed hospital with more than 8,000 HCPs, they had instituted several preventive measures between April 1 and 17. HCPs and patients alike masked up. High-risk HCPs underwent surveillance testing every 2 weeks, while patients did on admission and prior to invasive procedures. Cluster units were also tested weekly.

Not long after, Texas began its reopening, which it did in three phases. By June 12, at the last phase, restaurants were operating at 75 percent of its capacity while college and professional sports capacity were increased to 50 percent, along with other facilities that were open. During this period, 112 HCPs tested positive for SARS-CoV-2, with the infection starting in the community then spreading staff to staff, Al Mohajer said. There were also seven HAIs recorded, which corresponded to 3.4 cases per 1,000 patient-days.

In response, on July 6, the hospital recommended that all HCPs wear a face shield upon entry to facility on the basis that face shields “reduce the potential of autoinoculation by preventing the wearer from touching their face” and “protect the portals of viral entry.”

Previous studies have shown that this measure effectively reduced immediate viral exposure by 96 percent when exposed within 18 inches of a cough source and blocked 68 percent of small particle aerosols, Al Mohajer noted. [JAMA 2020;324:1348-1349; J Occup Environ Hyg 2014;11:509-518]

Indeed, the intervention resulted a significant decline in the predicted proportion of HCPs contracting SARS-CoV-2 (18.0 percent to 3.7 percent; p<0.001) and HAIs (from 8.4 to 1.7 per 1,000 patient-days; p<0.001). “Similar results were described in community health workers in India after implementation of face shields,” he said. [JAMA 2020;324:1348-1349]

“Our findings support universal face shield use as a part of a multifaceted approach in areas of high SARS-CoV-2 community transmission,” according to Al Mohajer.

Face shields are easy to manufacture, which makes them widely available and cheap, he added. They can be washed and disinfected and reused indefinitely.

Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS Infectious Diseases - Malaysia digital copy today!
Sign In To Download
Editor's Recommendations
Most Read Articles
3 days ago
Tetanus toxoid 5 Lf, diphtheria toxoid 2 Lf, pertussis toxoid 2.5 mcg, filamentous haemagglutinin 5 mcg, fimbriae types 2 and 3 5 mcg, pertactin 3 mcg
Pearl Toh, 22 Oct 2020
The combination therapy comprising carfilzomib, cyclophosphamide and dexamethasone (KCd) is effective, with a tolerable safety profile, in an Asian cohort with high-risk multiple myeloma (MM) — thus providing a more economical alternative as a potential upfront regimen in resource-limited settings, according to leading experts during a myeloma education webinar.
Jairia Dela Cruz, 3 days ago
The selective serotonin reuptake inhibitor escitalopram holds promise in the prevention of Alzheimer’s disease, reducing amyloid-β-42 levels in cerebrospinal fluid and brain tissue in older adults with normal cognitive function, according to recent evidence.
Roshini Claire Anthony, 13 Nov 2020

Diabetes is a key risk factor for heart failure (HF), which is the leading cause of hospitalization in patients with or without diabetes. SGLT-2* inhibitors (SGLT-2is) have been shown to reduce the risk of hospitalization for HF (HHF) regardless of the presence or absence of diabetes.