For respiratory viruses, should folks wear masks in public a) always, b) if they are or may be infected, or c) if they are afraid of getting infected? Are masks a) protection, or b) social signals?

Since 2020, the public has thought of masks as having a protective purpose, and many rebel at the inconvenience, rationalizing that “they do a poor job of protecting.” Is the current epidemic a good opportunity for government and medicine to teach the folks about the more important virtues of using masks to convey information?
Medicine Microbiology Public health Virology
2
Antonio Toniolo
Masks protect against respiratory transmissible biological agents. The mechanosm is not avoiding any possible contagion, but limiting (i.e. reducing) contagion in a way that depends on the infectious dose. That is, they reduce thebdose of microorganisms emitted or ninhalednl by each person in the community. Reduced infectious doses are better sealt with by the innate immune system. Thus infection antlow doses may not develop into clinically manifest disease. Thus,  also subsequent transmission is reduced. During an epidemic, masks must be weared continuously whe in presence of several persons within closed spaces. In open air, they must be weared when many persons are close to each other (small events, etc.). Large events shouldnbe avoided.
1
J.J. Perry
b and c
a
1
Dr. Nachamkin
If you are sick, stay home, don't go to work. If traveling and sick with respiratory symptoms, wear a mask. I always wear a mask when flying since I don't know the person (s) next to me.  Masks are for protection (yourself and others), not a social signal.
0
Roger Renne
Wear a mask around dense concentrations of people and in medical facilities. 
0
JP KABUE
JP KABUE

1.c
2.a
0
Dr Mac
I am a veterinarian. Work with fowls that have Avian influenza, pigs with Porcine Influenza. Also check out huge numbers of animals/ birds in production houses. ALWAYS wear a mask AND full protective clothing TO PROTECT MY PATIENTS as well as preventing me from being a carrier. In September 2023 I had a routine blood test. The paramedic was coughing and did not wear a mask. Two days later I was positive for  COVID-19 Omicron  strain.  I WAS VERY ANGRY with the paramedic!!! As a patient , I will now ALWAYS wear a mask if I visit a medical practice in future. Its obviously full of sick patients and paramedics with no face masks. SELF DEFENCE.
0
Caylynn
Given that people can transmit respiratory viruses even when they are experiencing zero symptoms, masks should always be worn when in public. It's an enormous failure of public health that mask mandates have been dropped. Masks work best when everyone wears them, and they need to be high quality masks (FFP2s, N95s, KN95s, etc.) Baggy blues don't offer much protection, but properly worn high quality masks DO.
0
Kanwar
When most people are unaware who is infected or not, one needs to put on a mask as that shall surely reduce the nasal uptake of contagious particles. It holds true and right for the respiratory viruses.
0
Prof Dr Darakhshan Jabee Haleem
Wearing of mask is needed for self protect as well as for others protection.
0
G. Bennett
a,a both protection and help others if you have infection
0
Dr. Ximenez-Fyvie
A) Always. 
0
Dr. Vimal Kumar

1. For respiratory viruses,  folks should wear masks in public a) always

2.Masks are  a) protection
-1
Igor Burstyn
only in healthcare setting or other places where respiratory protection programs can be operated, and everyone is trained and fit-tested. otherwise, it is just a waste of effort, unless new evidence emerges showing that this is not so. mass masking during covid-19 (and prior similar epidemics) seem to only have cause distress (physical and mental), societal strife, and sense of false security.  all this was written about many times many years ago by infection control community: they only way to reduce risk from such viruses is a safe and effective vaccine.
-1
Federico Benetti MD
For Respiratory Virus stablish Folks always should wear masks
-1
Dr. Sandeep Kumar-Regulatory Affairs, Pharmaceutic

For respiratory viruses, should folks wear masks in public a) always,  


Are masks a) protection


-1
Dr N Pradeep Kumar
1. b & c
2. a
-1
Zeeshan
B) If they are or maybe infected, so that they do not transmit it ; A) Protection : Masks are usually a protection
-2
Arshad Mehmood Abbasi
1: B
2: A
-2
Tashfeenchem
If afraid then must put on mask always, because in that case your immune system will be further weakened by the fear of being catching infections.
-3
Prof. Yousef al-saraireh

b) if they are or may be infected


-4
Professor/Sherif Mohamed
b)

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