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Working Nurse l WorkingNurse.com 7 September 7–October 5, 2020 Limiting the Spread While masks' protective value is at best imperfect, even improvised masks can effectively prevent an infected wearer from transmitting the disease to others by containing the spread of respiratory droplets. However, the value of masks for what epidemiologists call source control — especially during a pandemic that can be transmitted by someone with no symptoms — depends on how many people are masked. Because wearing a mask provides little protection for the average untrained user, a single unmasked, infected person can potentially infect dozens of others, whether those people are masked or not. For that reason, the surest way for mem- bers of the public to protect themselves from COVID-19 is still to minimize contact with anyone outside their household. Mixed Messages One of the principal reasons the World Health Organization (WHO) and other Western health experts were initially reluc- tant to recommend masks for the general public was the con- cern that widespread mask use might make people feel safe when they're not, thereby discouraging them from staying home and limiting their social contacts. Health officials were also afraid of exacerbating PPE short- ages for healthcare workers, which have forced those who most need masks and respirators to compromise their infec- tion control protocols. (WHO has consistently recommended medical masks for healthcare workers.) The shift from recommending masks only for healthcare workers to requiring them for almost everyone does not reflect any significant change in the scientific consensus on the value or limitations of mask use. The principal change has been one of public health priorities, driven by the belated real- ization that social distancing alone isn't enough to limit the spread of the disease. Such mixed messages have done little to mollify people who want a quick return to business as usual, or who see mask requirements as government overreach. While skeptics might grudgingly accept masks to protect themselves, asking them to bear the inconvenience and discomfort to protect others is apparently a bridge too far for some. We're in This Together The bottom line for nurses? Follow your facility's PPE guide- lines, wear a nonmedical mask in public, stay home as much as possible and encourage others to do the same. The only sure way to end this pandemic is for everyone to do their part. ____________________________________________________ Aaron Severson is the associate editor of Working Nurse. You can find his recent historical features, "William Rathbone VI (1819-1902), Father of English District Nursing" and "A Brief History of Measles and Its Vaccines," at WorkingNurse.com. WN REACH HIGHER IN YOUR NURSING CAREER As California's #1 health system (#4 in the nation) with multiple Magnet® hospitals and an unwavering commitment to the highest standards of nursing excellence, UCLA Health is the place where dedicated nurses can redefine patient care and their careers. We have exciting opportunities for RNs in a wide variety of clinical disciplines throughout our award-winning hospitals, ambulatory and specialty clinics. We have a particular need for Resource RNs with a passion for coordinating and delivering the most expert and compassionate care possible. VALUING THE DIVERSITY THAT'S U Apply today by searching nursing roles at: UCLAHealth Careers.org Connect with us at one of our upcoming virtual events at: UCLAHealth Careers.org/Events