Hanoi, May 26 -- The Ministry of Health (MoH) has urged specialised agencies and local health departments to step up surveillance and response efforts, as COVID-19 cases have been sporadically reported in 27 localities nationwide since early 2025, with numbers rising in recent weeks. The MoH also called on the public to follow preventive measures, including wearing masks, avoiding large gatherings, practicing regular hand hygiene, maintaining a healthy diet and exercise routine, and seeking prompt medical attention if experiencing symptoms like fever, cough, or shortness of breath. According to the World Health Organisation, more than 25,000 COVID-19 cases have been recorded globally over the past month. Notably, from January 1 to May 10,...