The COVID-19 pandemic has reshaped life as we know it. Many of us are staying dwelling, avoiding folks on the road and changing each day habits, like going to school or work, in methods we never imagined.

While we are altering old behaviours, there are new routines we need to adopt. First and foremost is the behavior of wearing a mask or face covering every time we are in a public space.

Based on our prior work in outbreaks of infectious diseases, we all know that clear, constant messages about what individuals can do to protect themselves and their group are critical. By that measure, the messaging on masks has been confusing.

Early within the pandemic, most people was told to not wear masks. This was pushed by the longstanding recognition that customary surgical masks (also called medical masks) are inadequate to protect the wearer from many respiratory pathogens, as well as the concern about diverting restricted provides from healthcare settings.

Science is the pursuit of knowledge and understanding, and it inevitably modifications the best way we see the world. Because of the tireless efforts of scientists in all places, we’ve compressed years of analysis on the COVID-19 virus into months. This has led to a fast evolution of insurance policies and suggestions, and never surprisingly some skepticism in regards to the advice of experts.

These are a few of the things we’ve discovered:

Masks and face coverings can stop the wearer from transmitting the COVID-19 virus to others and may provide some protection to the wearer. A number of research have shown that face coverings can comprise droplets expelled from the wearer, which are accountable for the majority of transmission of the virus. This ‘supply control’ approach displays a shift in thinking from a ‘medical’ perspective (will it protect the wearer?) to a ‘public health’ perspective (will it help reduce community transmission and risk for everybody?).
Many individuals with COVID-19 are unaware they’re carrying the virus. It is estimated that 40% of individuals with COVID-19 are asymptomatic however doubtlessly able to transmit the virus to others. Within the absence widespread screening tests, now we have no manner of figuring out many people who find themselves silently transmitting the virus of their community.
Universal masks use can significantly reduce virus transmission in the neighborhood by preventing anybody, including those who are unwittingly carrying the virus, from transmitting it to others. Illness modeling suggests masks worn by significant parts of the inhabitants, coupled with other measures, may lead to substantial reductions in case numbers and deaths.
Masks usually are not perfect boundaries to transmission, but they don’t should be perfect if they aren’t used alone. Common masks use must be accompanied by different public health measures similar to physical distancing, testing, contact tracing and restrictions on massive gatherings. Those measures aren’t excellent either, however when many imperfect measures are mixed at a community level, they are often very effective at slowing transmission and reducing infections.

Masks also can reduce the inequitable impact of the pandemic, significantly for individuals who live in crowded environments the place physical distancing is difficult, and for individuals who work in frontline roles the place there’s a larger risk of publicity to the virus.

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