China, once the source of the coronavirus outbreak, has seen some great improvements over the past few weeks. This has led to restaurants reopening, people going back to work, and travel restrictions getting lifted. However, a new outbreak has brought these plans back down.

The biggest and most recent outbreak of coronavirus cases comes from the city of Harbin, according to a report by The New York Times. Harbin is a city of 10 million people, and is located by the Northeast China/Russia border. According to The New York Times, dozens of new COVID-19 cases have sprung up in the city, with many being traced back to Chinese people returning home from abroad.

The majority of cases believe to all come from one woman who flew back to China from America in mid-March. Other cases include Chinese nationals who are returning from areas like Russia. What's worrisome about the woman coming from the United States was that she was tested four times, with each result coming back negative. She was tested again later, and was found to be positive for COVID-19. China's Center for Disease Control and Prevention said the organization is unclear as to why her test results kept showing a negative result.

In an effort to slow the increase in cases, China has cracked down again on the number of people who are allowed to enter the country. Additionally, cities in provinces near Harbin have taken their own measures to counteract people from other cities, including Chinese cities. The New York Times reported that businesses like hotels are banning anyone from Heilongjiang Province, where Harbin is located.

While it sounds like the majority of cases in Harbin have been contained, this is a perfect example of what the rest of the world will likely face over the next few months. As restrictions are slowly lifted, there will likely be spikes of cases all over the globe. Unfortunately, this trend will likely continue until a proper vaccine or other form of medicine is created that can fully stomp out any major outbreaks.