São Paulo's Municipal Health Secretariat reported this week the first case of variant XBB.1.16 of Covid-19, also known as Arcturus in a 75-year-old man, bedridden and with comorbidities, who presented the symptoms of influenza syndrome and persistent fever on April 7.
Scientists in India have detected at least 3,000 daily cases of a new subvariant of Covid-19 which has been dubbed Arcturus and is a sublineage of the Omicron version. The new strain has been reported to spread fast and affect even the vaccinated population. It also produces unforeseen symptoms.