Editor’s Note — Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get news about destinations opening and closing, inspiration for future adventures, plus the latest in aviation, food and drink, where to stay and other travel developments.(CNN) — The US Centers for Disease Control and Prevention on Monday added three destinations to its “high” risk category for travel, including an Eastern European country known for its mountains, thick forests and folklore culture.Romania is the most notable travel destination to receive a Level 3, “Covid-19 high” designation in a week that saw few overall changes in risk assessment. The other two were Romania’s smaller, wine-making neighbor Moldova and sparsely populated St. Pierre and Miquelon, a French archipelago off the coast of Newfoundland, Canada.There were almost 125 destinations at Level 3 on August 1. Level 3 locations account for more than half the roughly 235 places monitored by the CDC.Level 3 became the top rung in terms of risk level in April after the CDC overhauled its ratings system for assessing Covid-19 risk for travelers.The designation applies to places that have had more than 100 cases per 100,000 residents in the past 28 days. Level 2 and Level 1 are considered “moderate” and “low” risk, respectively. To recap, these three destinations received “high” risk designations on Monday:• Moldova• Romania• St. Pierre and MiquelonLevel 4, previously the highest risk category, is now reserved only for special circumstances, such as extremely high case counts, emergence of a new variant of concern or health care infrastructure collapse. Under the new system, no destinations have been placed at Level 4 so far.More on Level 3 Much of Europe has been stubbornly lodged at L …