What would be the need for such a device?
The flu has been eradicated 100%.
There is no more flu.
The flu in the past year has been lumped in with WuHan Flu. The COVID tests don’t distinguish therefore it is all WuFlu because that is more politically convenient. The tests lso don’t differentiate between strains of WuFlu so the extent of this “D” variant is questionable. All of it is preventable or, in the case of WuFlu, is mitigated by summer sunshine or non-summer vitamin D supplements liberally applied.
The flu in the past year has been lumped in with WuHan Flu. The COVID tests don’t distinguish therefore it is all WuFlu because that is more politically convenient. The tests lso don’t differentiate between strains of WuFlu so the extent of this “D” variant is questionable. All of it is preventable or, in the case of WuFlu, is mitigated by summer sunshine or non-summer vitamin D supplements liberally applied.