Infections with the Omicron variant of the coronavirus have been reported across 22 out of 47 prefectures in Japan, a tally based on local government reports showed Thursday, one month after the first domestic case was confirmed.Around 500 people have been infected with the highly transmissible strain in the country, according to the reports. The development has fueled concern about a potential resurgence of COVID-19 infections during and after the year-end and New Year's holiday period and its impact on the medical system.Most of the Omicron cases have been detected in quarantine. But comm…READ FULL ARTICLE