zubenelgenubi
I'm a star
Introduction and scope of the guidelines - Infection Prevention and Control of Epidemic- and Pandemic-Prone Acute Respiratory Infections in Health Care - NCBI Bookshelf
Here is an actual link to something written by scientific and medical experts, not a bunch of truck drivers opinions
"When a new infectious disease is identified, the modes of transmission are not well understood. The epidemiological and microbiological studies needed to determine the modes of transmission and identify possible IPC measures may be protracted. Due to the lack of information on modes of spread, Airborne and Contact Precautions, as well as eye protection, should be added to the routine Standard Precautions whenever possible, to reduce the risk of transmission of a newly emerging agent (Annex B describes Standard and other precautions). These precautions should be implemented until further studies reveal the mode of transmission. Epidemiological and clinical clues can indicate when additional precautions are needed"
I have been reading actual scientific papers posted on National Center for Biotechnology Information
and Google scholar. The paper you linked to is for clinical settings, not meant as a guideline for the general public. That supports exactly what I've been advocating all along. Leave the masks for the sick and the caregivers. The gen pop doesn't use masks properly, which puts them at greater risk,.and the help masks would give if used correctly is negligible. To top it off, in order to actually get a benefit from.wearing a mask at all, you would have to remove them every ten minutes or so, carefully dispose of the used ones (or seal up for disenfection if reusable), wash your hands, and put on a new one. Masks that keep a space away from the mouth and nose can last longer, but should still be changed out regularly.
And as @DriveInDriveOut already pointed out, no one said respiratory illness can't be spread in warm/humid areas. They follow a very predictable pattern of new cases dropping significantly during summer months, and start increasing into fall. If they couldn't be spread in warm weather, they would die out pretty quickly, or at least be far easier to manage. This is well understood, even by dumb truck drivers.
Here's another article from nih.gov about masks. Read through the cited references too, they have more in depth info.
The surgical mask is a bad fit for risk reduction