Not to be Sniffed at?

Loss of the sense of smell (anosmia) and/or an impairment of the ability to taste food (also related to olfaction) have now been added to the list of symptoms for a potential Covid-19 infection (https://www.theguardian.com/world/2020/may/18/uk-coronavirus-tests-advised-for-people-who-lose-taste-or-smell). People showing this sensory loss are reportedly being urged (where possible) to have a test for the virus. This addition seems a bit slow as people were reporting this as a common symptom several weeks ago,