Limited effectiveness is not the same as ineffective.
Cloth masks are less effective than n95 which are less effective than paprs. So I should not wear any mask unless I can get a papr because they're not as effective?
Cloth masks are less effective than n95 which are less effective than paprs. So I should not wear any mask unless I can get a papr because they're not as effective?
I should have included the last sentence from that paragraph in the study, because it's pretty concise:
"Therefore, careful consideration should be given to the cost‐benefit of implementing such measures."
IMO it'd be impossible & fruitless to attempt to get even moderate numbers of businesses to do health & temperature screening, much less small businesses; it's just cost-prohibitive, and with the benefit being mediocre at best, there are likely better places to allocate resources.