Testing of a mobile heating facility to sanitize N-95 respirators against an enveloped respiratory virus.

In the spring of 2020, the Alaska Native Tribal Health Consortium (ANTHC) designed and built a sanitizing treatment system to address shortages of filtering facepiece respirators (FFRs). The design criteria included sanitizing large numbers of FFRs, repeatedly achieving FFR fit test requirements, and deactivating enveloped respiratory viruses, such as SARS-CoV-2. The outcome was the Mobile Sanitizing Trailer (MST), a 20 by 8-foot modified trailer designed to process up to 1,000 FFRs during a standard heat cycle. This paper reports on the MST's ability to: (1) sustain a target temperature, (2) produce tolerable conditions for FFRs as measured by fit factor and (3) successfully deactivate an infectious model virus. We found that the MST reliably and uniformly produced 75 degrees Celsius in the treatment chamber for the prescribed periods. Quantitative analysis showed that the FFRs achieved acceptable post-treatment fit factor even after 18, 60-minute heat cycles. Finally, the treated FFR materials had at least a log 3.0 reduction in viral RNA and no viable virus after 30, 60 or 90 minutes of heat treatment. As a sanitizing treatment during supply shortages, we found the MST a viable option for deactivation of virus and extending the usable life of FFRs.

Reopening Dental Offices for Routine Care Amid the COVID-19 Pandemic: Report From Palestine.

OBJECTIVES: This study reports on the readiness of Palestinian dentists to reopen their practices for routine care during the current coronavirus disease 2019 (COVID-19) pandemic. METHODS: A cross-sectional study targeted dentists in the West Bank area of Palestine using an online survey during the first 2 weeks of May 2020. Questions mainly asked about dentists' perception of the risks of COVID-19, readiness to reopen their clinics for routine care, and the level of confidence in dealing with patients suspected of having COVID-19. RESULTS: A total of 488 dentists completed the survey. Almost 60% believed that they were not ready to reopen their practices. Almost 13% had "no confidence" in dealing with patients with COVID-19, while 64% had "little to moderate" confidence. Confidence was correlated negatively with increased fear of becoming infected (ρ = -0.317, P < .0001) and positively with years of practice (ρ = 1.7, P < .0001). Dentists who received updated training on infection control or on COVID-19 reported higher levels of confidence (χ2 = 53.8, P < .0001, χ2 = 26.8, P < .0001, respectively). Although 88% preferred not to treat patients with COVID-19, 40% were willing to provide care to them. Almost 75% reported that they were already facing financial hardships and could not survive financially until the end of the current month. CONCLUSIONS: Ethical and financial reasons were the main drivers for dentists in this sample to reopen their practices for routine care. Data from this study highlights the fragility of private dental practice in emergency situations. Ethical, health, and financial challenges that emerged during COVID-19 require dentists to adapt and be better prepared to face future crises.

Antenatal Depression and the Impact of COVID-19 Mitigation Efforts in Australia (preprint)

The mitigation efforts of COVID-19 have led to significant changes to the delivery of routine healthcare globally. In Australia, the way maternal health services have been delivered since the beginning of the pandemic has also changed. Maternity care and support are known to influence maternal mental health. One hundred and eighty-eight English speaking pregnant women residing in Australia were recruited using social media advertising between September and November 2020 as part of a larger study. Participants were aged between 19 and 42 (M = 31.05, SD = 4.68). Compared with previous Australian prevalence rates of around 7% for antenatal depression, rates in this study were 15.9% overall and 19% for those in Melbourne. It is suggested that increased vigilance with screening and assessment will be required to identify and support this cohort of mothers who are not coping.