Danish study finds face masks provide limited protection to wearer

After one month 1.8% of the people wearing masks had been infected while 2.1% of the people in the control group had tested positive Copenhagen University Hospital said in a press release

After one month 1.8% of the people wearing masks had been infected while 2.1% of the people in the control group had tested positive Copenhagen University Hospital said in a press release

But the findings conflict with those from a number of other studies, experts said, and is not likely to alter public health recommendations in the United States.

And in July, the CDC stressed that cloth face coverings are a critical tool in the fight against COVID-19, particularly when everyone wears them.

The World Health Organization (WHO) has several times revealed that the usage of face masks and maintaining social distancing are the best ways to stay protected from coronavirus infection.

Biden, now president-elect, has said repeatedly that there should be a nationwide mask mandate.

But today, Adams has a different message pinned to the top of his Twitter account.

The researchers at the University of Copenhagen recruited 6,024 participants who had been tested before the implementation of the research to make sure that they were not infected with the virus.

In total, 4,862 people completed the study. The researchers had hoped that masks would cut the infection rate by half among wearers.

The U.S. Centers for Disease Control and Prevention has long advised people to wear masks because they help prevent people who are infected - whether they know it or not - from spreading the coronavirus.

The difference between the two groups not statistically significant.

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Researchers expected to see a halving of the risk of transmission in cases where subjects were wearing masks, but were surprised to see a far more modest rate of protection of up to 20 percent.

Dr. Mette Kalager, a professor of medical decision-making at the University of Oslo, found the research compelling.

Other experts were unconvinced. They aren't made to be worn multiple times. Therefore, these results can not be used in the context of the fact that masks do not need to be worn at all.

According to the study authors, the results show the degree of protection that mask wearers can expect when others are not wearing them, but other recommendations against COVID-19 are being followed.

A study done in Denmark, published Wednesday in Annals of Internal Medicine, seemed to question whether and to what extent masks protect the wearer. The answer depends on what mask is used and what sort of exposure to the virus each person has, Frieden said, and the study was not created to tease out those details.

Dr. Frieden also added that an N95 mask is better than a surgical mask. When an uninfected person wears a mask near an infected person who is not wearing it, the amount of virus inhaled by the uninfected person decreases by up to 50%. "A cloth mask is better than nothing".

The study's conclusion flies in the face of other research suggesting that masks do protect the wearer.

Iowa Governor Kim Reynolds She cast some doubts Tuesday about the science behind the masks even as it imposed a limited mask rule, indicating that neighboring states with mask mandates have seen increasing numbers of cases, although not as risky as Iowa. He has also promised to ask every governor to impose mask rules.

Preventing the spread to others is known as source control. Masks "are not a magic bullet", she said. Researchers had expected the risk of infection would be halved among the group given surgical masks and told to wear them outside the home.

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