The Danish government announced Wednesday it will make available a fourth COVID-19 dose to its citizens later this week, making Denmark the first country in Europe to introduce a second COVID-19 vaccine booster. “The more widespread the infection is in society, the greater the risk that the infection will reach our most vulnerable,” Health Minister Magnus Heunicke told a news conference. “We are now embarking on a new chapter, namely a decision to offer the fourth jab to the most vulnerable citizens,” he told reporters. This cohort had been offered an initial booster in autumn. The government has yet to decide on whether to offer another dose to seniors and nursing home residents. The European Union’s drug regulator, the European Medicines Agency (EMA), has expressed concerns over the use of current COVID-19 vaccines as a fourth dose, adding there is no data to support having “repeated vaccinations within short intervals” as a …