Traveler from the US infects 71 people in China with Covid-19, research finds

A girl returning residence to China from the US carried coronavirus again with her and sparked an outbreak that ended up infecting not less than 71 people, researchers reported Tuesday.

It began with an elevator trip, the researchers report in the Centers for Disease Control and Prevention’s journal Emerging Infectious Diseases. 

The girl returned to Heilongjiang Province from a visit to the US on March 19, a couple of week after the final coronavirus case was identified in the province. She had no signs and examined damaging for coronavirus, however was requested to quarantine at residence. 

No one suspected something was flawed till a person with no apparent connection to the traveler suffered a stroke. It seems he had been at a celebration with kinfolk of a neighbor dwelling in the similar constructing as the traveler.

When the researchers in China lastly put the story collectively, they decided that the traveler should have one way or the other contaminated the elevator in her constructing. Her downstairs neighbor, who used the similar elevator, additionally acquired contaminated, and he or she in flip contaminated her mom and her mom’s boyfriend. They went to a celebration and contaminated the stroke affected person and his sons. 

The stroke affected person and two of his sons went to 2 hospitals. At least 28 people had been contaminated at the first hospital and 20 extra had been contaminated when he was moved to a second facility.

When the Chinese Center for Disease Control and Prevention investigated the genetic make-up of the virus discovered in this new outbreak, they discovered it was totally different from strains beforehand seen in China. The viruses in the sufferers had been genetically similar or not less than very comparable, which led them to imagine the virus originated abroad. 

When investigators discovered {that a} neighbor of certainly one of the instances had not too long ago returned from overseas, they examined her once more. She was not at the moment contaminated however had antibodies to the virus, indicating a earlier an infection. They designated her A0, which means she was the first case. “Therefore, we believe A0 was an asymptomatic carrier and that B1.1 (her neighbor) was infected by contact with surfaces in the elevator in the building where they both lived,” they wrote. Other residents in the constructing all examined damaging.

“As of April 22, 2020, A0 remained asymptomatic, and a total of 71 SARS-CoV-2–positive cases had been identified in the cluster,” the researchers wrote.

“Our results illustrate how a single asymptomatic SARS-CoV-2 infection could result in widespread community transmission.”

Most Viewed