市販のマスクつけてもあまり意味ない

ニュース 経済 マスク「１箱６５枚入り」５万円超も、メルカリが高額出品を削除 

　メディアが何人死んだとか、何人感染したとかばっか報道しているから、不安ばっか増大しているんじゃないかねええ？

　そもそも市販のマスクつけても感染しないわけではなく、咳するときに拡散するのを防ぐくらいで、だったら、咳するとき腕で塞いでも十分とも言われている。

  Can wearing a face mask protect you from the new coronavirus? By Laura Geggel - Associate Editor 5 days ago 

No, a regular surgical mask will not help you steer clear of the virus. In some Asian countries, such as Japan and China, it's not uncommon to see people wearing surgical masks in public to protect against pathogens and pollution. But those masks don't help much in the context of a virus, Schaffner said. "They're not designed to keep out viral particles, and they're not nearly as tightly fitted around your nose and cheeks," as an N95 respirator, he said.

Can Face Masks Prevent Coronavirus? Experts Say That Depends  The Centers for Disease Control and Prevention (CDC) does not currently recommend that people in the U.S. wear face masks in public to prevent infection. Dr. Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases, told reporters during a press call on Thursday that the best preventative measures include washing hands and covering coughs.
 

The CDC has issued guidelines on two different kinds of face masks — surgical masks and N95 respirators — which are commonly worn by health care professionals and those who are already sick. For members of the public, the effects of using face masks are not well known. But experts say already sick and infected people who can’t avoid going outside — especially those who will be in confined spaces or hospital waiting rooms — should wear masks to avoid spreading germs. “It’s not foolproof, but it does keep you from coughing out infectious particles with any respiratory virus,” says Dr. Marybeth Sexton, assistant professor in the Division of Infectious Diseases at Emory University School of Medicine.

効果あると言われるN９５マスクだって付け方がむずかしく、市販のマスクだって、効果ゼロとは言わない程度。

　予防に効くのは、手洗い、と　咳をするとき口をなにか塞ぐことだ、と。