Weekly Health Quiz: Masks, Infants and Obesity

1 Which of the following statements is factually accurate?

• Masks of all kinds effectively block viruses
• Only N95 masks can block viruses such as SARS-CoV-2
• Surgical masks provide the highest level of protection against viruses such as SARS-CoV-2
• No medical or cloth mask can block exhalation or prevent inhalation of aerosolized (airborne) viruses

  No medical or cloth mask can block exhalation or prevent inhalation of aerosolized (airborne) viruses such as SARS-CoV-2. At best, they can inhibit (but not 100% block) the emission of potentially infectious respiratory droplets when speaking, laughing or coughing. Learn more.