But officials say further testing could be done before or after the Jewish holidays, where large family gatherings are common.... The first of those festivals is on Sept6 and the last on Sept30.In areas with particularly high infection, schools where less than 70 per cent of students are vaccinated are required to conduct remote learning.... Join ST's Telegram channel here and get the latest breaking news delivered to you. Topics: More Whatsapp Linkedin FB Messenger Telegram Reddit WeChat Pint