And while US Secretary of State Mike Pompeo has stressed the "importance" of reconnecting the United States and the EU during the coronavirus pandemic, a graph shows exactly why European countries are excluding Americans.
Many European countries have entered a strict lock in the beginning, and EU countries are reopening gradually and cautiously as the number of their cases decreases.
Health experts have repeatedly warned that some states in the United States are reopening far too early, while some administration officials have said that President Donald Trump and his associates are "in denial" of the seriousness of the pandemic.
More than a dozen states have now suspended or canceled their reopening plans while the United States is seeing an increase in cases of coronavirus.
The United States has recorded more cases and deaths than anywhere in the world, with nearly 2.6 million cases and more than 126,000 deaths, according to figures from Johns Hopkins University. Brazil, Russia and India - the three countries with the highest number of cases after the United States - have also been excluded from the EU safe list.
The decision is based on the epidemiological situation of a country similar to or better than that of Europe, as well as comparable hygiene and containment measures.
The EU has recommended that member states allow entry into China, where the virus originates, subject to reciprocal arrangements. The other 14 countries are: Algeria, Australia, Canada, Georgia, Japan, Montenegro, Morocco, New Zealand, Rwanda, Serbia, South Korea, Thailand, Tunisia, Uruguay.
Data for the United States shows that new cases in at least 36 states have an upward trend from the previous week. The state and local leaders have said that the increase in the number of cases was partly due to gatherings at home and in meeting places such as bars.
In Texas and parts of California, bars were to close, while the beaches of Miami, Fort Lauderdale and Palm Beach were closed to the public over the weekend of the upcoming vacation. In Florida, on-site alcohol consumption has been suspended in state bars and in Arizona, many businesses close for at least 30 days.
New York Governor Andrew Cuomo announced Monday that the state would decide later this week whether or not to slow the reopening of restaurants inside New York City because "it has been shown to present risks in other states. "
While Europe seems to be going through the worst - at least for now - there have been localized peaks in some cases. In Germany, authorities were forced to quarantine 360,000 people this week after an outbreak in a meat factory in the state of North Rhine-Westphalia.
Schools and shops in the city of Leicester in the UK - a country in transition outside the EU - must close again as some restrictions on coronavirus are re-imposed because its infection rate is three times higher than the next highest local area.
Despite these resurgences, the EU is able to gradually allow the reopening of its borders to other countries.
But for now, the United Statessimply does not meet the criteria.
