Japan's health ministry has urged local governments to prepare for the administration of COVID-19 vaccine to children aged 5 to 11, expanding inoculations to this age group in February at the earliest, its officials said Wednesday.While the Ministry of Health, Labor and Welfare has sent the notice dated Tuesday to municipalities, some health experts have expressed concern amid uncertainty over the efficacy and safety of the vaccine in children aged under 12.U.S. pharmaceutical giant Pfizer Inc. and German partner BioNTech SE applied last week for Japanese government approval to inoculate ch…READ FULL ARTICLE