BERLIN—The Austrian government on Sunday presented revised plans for its proposed COVID-19 vaccine mandate, which it said will now apply to all residents age 18 and over, rather than 14 as originally intended. Officials said that a phased introduction will give people plenty of opportunity to comply. The government announced nearly two months ago that it would implement a general vaccine mandate early this year. In early December, it produced a first draft, calling for the measure to be introduced in February and foreseeing fines of up to 3,600 euros ($4,100) for people who flout it. Key aspects of the plan remain in the final version, which the government aims to have parliament approve on Thursday, but officials said consultations with two opposition parties and others showed the need for significant changes to details. Chancellor Karl Nehammer said there had been concern about teenagers being punished, hence the change in …