Some infectious disease experts increasingly think wearing a mask could mean even if a person is infected, they are more likely to get a milder or even asymptomatic form of the disease.
Wearing a cloth face covering is estimated to screen out between 65% and 85% of viral particles, said Dr. Chris Beyrer, an epidemiologist at Johns Hopkins Bloomberg School of Public Health and another author.
It’s seen in many other diseases, said Otto Yang, a professor of medicine and chief of infectious diseases at the David Geffen School of Medicine at UCLA The idea remains a hypothesis because the scientists don't have specific data as it's impossible to do studies in humans. “We can’t spray SARS-CoV-2 virus in people’s faces at lower and higher doses and see who gets sicker,” said Gandhi.if masks were used to filter the air into their cages, they were less likely to become infectedThere’s also ecological evidence from the pandemic that seems to bear this out. Take the case of two cruise ships that both had COVID-19 onboard.
A later infection hit the another cruise ship called the Shackleton. When the first case appeared, all passengers were issued surgical masks and all staff wore N-95 masks. While 58% of passengers and crew ended up becoming infected with COVID-19,Another example comes from Oregon, where everyone in a fish processing plant was issued masks each day at work.
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