Loss of sense of smell alone can be an early sign of COVID-19 infection:

https://medicalxpress.com/news/2020-03-loss-covid-.html

Sample quote
“ While further research is required, loss of smell, or anosmia, has been reported in as many as one in three patients in South Korea and, in Germany, this figure was as high as two in three patients," says Professor of Otolaryngology (head and neck surgery) at Flinders University.

"An ENT professor in London has reported seeing a dramatic increase in patients with anosmia as their only symptom of COVID-19 infection."
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Maybe sniff your coffee each morning and order a pizza each evening to sniff the cheeses?

Originally Posted by 360view
Not just dry cough and later fever,
early symptoms of COVID-19 are not wanting to eat and the runs.

Sample quote

Nearly half of COVID-19 patients enrolled in the study conducted in the Hubei province of China presented digestive symptoms,
such as diarrhea and anorexia, and cited it as their chief complaint.
The study also reveals that patients with digestive symptoms had a longer gap between the onset of symptoms and hospital admission than patients presenting only respiratory symptoms and were less likely to be cured and discharged than those without digestive symptoms.
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From

https://medicalxpress.com/news/2020-03-digestive-symptoms-prominent-covid-patients.html