Most infections have been reported, to date, in Lisbon and Vale do Tejo, but, according to the DGS, there are also records of cases in the North and Algarve regions. All confirmed infections are in men between the ages of 19 and 61, with the majority being younger than 40 years. The new cases were confirmed by the National Institute of Health Doctor Ricardo Jorge (INSA).

"The identified cases remain under clinical follow-up, and are stable", says the DGS, which continues to monitor the situation at the national level in conjunction with European institutions.