At present, the scientific community is still different from the effectiveness of the mask epidemic prevention. Some experts point out that the empirical research on masks is difficult to implement. The public should recognize that the lack of effective evidence of the lack of masks, not explaining that the mask is useless, urging the government and the public health department to reasonably recommend that the public wearFace mask.
The new crown virus believes that it is mainly transmitted through the droplet. The virus volume is fine, and the general surgical mask and N95 cannot be completely blocked.Although previous studies have shown that wearing a mask is slightly slightly slightly more common than that of the influenza epidemic in Asian regions than in Europe and the United States without a mask.
Many experts may increase the risk of infection with improper wearing masks. For example, the wearer's epidemic prevention measures such as impressoring hand -washing and maintaining social distance are adjusted from time to time.Infected.Ilhem MESSAOUDI, an epidemiologist at the University of California, believes that the public can choose other ways of epidemic prevention, but medical care can only be closely exposed to patients. Under the loss of medical supply and failed to prevent the outbreak of the epidemic, it is recommended that all people wear it.The mask is irresponsible.
Difficult to carry out control experiments
The news website Quartz pointed out that the effectiveness of the effectiveness of masks is very difficult, because it is not feasible to collect millions of people wearing masks in the flu season to wear masks.A number of medical experts voted for the authoritative medical magazine at the end of last month that the lack of evidence that the lack of evidence to prove that the mask is effective and epidemic prevention is not as useless to prove that the mask is useless.When wearing a mask, we should also consider wearing masks under the ensuring supply.
