A loss of smell is a key covid-19 symptom, with researchers finding a link between increasing coronavirus cases in the US and Amazon reviews complaining a scented candle is odourless
Negative Amazon reviews of scented candles may indicate the number of covid-19 cases in the community and could even predict future infection spikes.
Viral Twitter posts have suggested that Amazon reviews for highly scented products could highlight the extent of anosmia, or a loss of smell, among the population, a key covid-19 symptom. However, some pointed out the purchase of products like candles may be skewed towards Christmas, when people are more likely to have a cold or flu, which can also affect our sense of smell.
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