Cause and effects of wearing Mask

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

Early in the pandemic, the general public was told not to wear masks. This was driven by the longstanding recognition that standard surgical masks (also called medical masks) are insufficient to protect the wearer from many respiratory pathogens, as well as the concern about diverting limited supplies from healthcare settings.

Science is the pursuit of knowledge and understanding, and it inevitably changes the way we see the world. Thanks to the tireless efforts of scientists everywhere, we have compressed years of research on the COVID-19 virus into months. This has led to a rapid evolution of policies and recommendations, and not surprisingly some skepticism about the advice of experts.

These are some of the things we’ve learned:

  • Masks and face coverings can prevent the wearer from transmitting the COVID-19 virus to others and may provide some protection to the wearer. Multiple studies have shown that face coverings can contain droplets expelled from the wearer, which are responsible for the majority of transmission of the virus. This 'source control' approach reflects 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 everyone?).
  • Many people with COVID-19 are unaware they are carrying the virus. It is estimated that 4o percent of people with COVID-19 are asymptomatic but potentially able to transmit the virus to others. In the absence of widespread screening tests, we have no way of identifying many people who are silently transmitting the virus in their community.
  • Universal mask use can significantly reduce virus transmission in the community by preventing anyone, including those who are unwittingly carrying the virus, from transmitting it to others. Disease modeling suggests masks worn by significant portions of the population, coupled with other measures, could result in substantial reductions in case numbers and deaths.

BY 
AISHA 
GRADE 6C
ORCHIDS THE INTERNATIONAL SCHOOL, VIVEKANANDA.

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