Masks may be needed until we reach herd immunity, say experts. When will that be?
Every Monday we’ll answer your questions on Covid-19 and health in a feature published online. You can submit a question here.Wearing a face mask in shops, hair salons or on public transport has become second nature for many of us in recent months. But with Covid-19 cases rising in the UK, some experts believe we should be wearing them even more frequently, such as when we visit a loved one’s home.
“I would hope we return to a time when circulating coronavirus levels are wiped out,” she tells HuffPost UK. “But, like with some cultures where they have repeated coronavirus outbreaks, mask-wearing for some is the norm.” Story continues“Of course, if an effective SARS-CoV-2 vaccine is found and widely used, this will increase overall herd immunity much more quickly to limit the spread of the virus further,” he says.
“Looking at the increasing rate of SARS-CoV-2 spread globally through susceptible populations – some with sporadic interventions of variable effectiveness – without a vaccine, it might take five to 10 years to reach a level of naturally acquired herd immunity,” he says. “Ironically, the more effective the infection control interventions , the longer they may have to stay in place, as they will also reduce the rate of acquisition of herd immunity,” adds Dr Tang. So, are we doomed to wear masks for the next decade? No necessarily, Dr Tang adds. Governments may decide to implement a “masks on, masks off” approach, by reacting to local virus levels. This would at least limit the environmental waste generated by masks.
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