3 ms·
A log-reduction of around 0.5 isn't much. "very effective" would be like 3-4 which even this n=4 study is enough to rule out
by bcoates 6y ago
A log-reduction of around 0.5 isn't much. "very effective" would be like 3-4 which even this n=4 study is enough to rule out
- em500 6y ago0.5 log-load reduction is a 66% decrease. A 1.5 reduction is 96%, which is N95 standard. Starting from 2.56, a log reduction of 3-4 is impossible. In any case, the large number of NDs (not detected) everywhere in the table, but especially inside the masks after the patient just coughed in them (which the authors struggle to explain), makes this entire experiment very suspect. (Just look at the reported results for patient 4, which make no sense at all!)
- C1sc0cat 6y agoNo offence you might want to brush up on your Maths and how log scales work.
- infecto 6y agoNo offense but you should do a better job at explaining whats wrong instead of telling someone to brush up on math.