China has been accused of silencing whistle-blowers and covering up the scale of infections and deaths inside the country.
There is currently no vaccine or specific treatment for COVID-19.
"This ban also responds to the demand and spirit of human civilization," a spokesperson for the Shenzhen government said.
The clinicians who treated her said the complication is rare.
The president's national security adviser said the U.S. "was not in a position" to confirm the numbers coming out of China.
Common symptoms include a fever, cough, and shortness of breath, according to the CDC.
"I am deeply concerned about the rapid escalation and global spread of infection," said Dr. Tedros Adhanom Ghebreyesus.
China and Russia are using the coronavirus pandemic to position themselves as world leaders while the United States turns its focus to domestic matters to battle the infectious disease.
One official told Bloomberg that the findings were delivered to the White House last week in a classified report.
The drugs are being used experimentally to treat COVID-19 patients.
As many haven't caught the new coronavirus it is likely "a large fraction of the Chinese population remains at risk of COVID-19," warned the authors of the study published in the journal Science.
Scientists looked at data from over 1 million people who logged their whether they had coronavirus symptoms on an app.
Almost 200,000 COVID-19 cases have been confirmed in the U.S., according to Johns Hopkins University.
European governments have reported tens of thousands of inadequate protective masks and testing kits ordered from China.
The official purchasing managers' index (PMI), which is a metric of activity in the manufacturing sector, was higher than expected, although global shutdowns will hurt demand.
"Our estimates can be applied to any country to inform decisions around the best containment policies for COVID-19," said Professor Azra Ghani of Imperial College London.
Some have begun to call for a crackdown on China's wet markets, which are suspected of being the place the virus could have originated.
Hundreds of thousands of COVID-19 cases have been confirmed since the outbreak started in late 2019, according to Johns Hopkins University.
The World Health Organization advises against the general public wearing masks unless they are sick or caring for those infected.
China appears to have almost stopped the spread of CVID-19 within its borders, but Western leaders have accused Beijing of hiding the true scale of the outbreak.
As China begins to relax some of its coronavirus-related restrictions, a senior World Health Organization official said the risk has not gone away.
The research involved 16 COVID-19 patients in China.
Announcement comes after FDA commissioner cautioned chloroquine needs to be studied in a clinical trial when President Donald Trump touted it as a potential COVID-19 treatment.
Footage from China's Hubei province appears to show residents attacking police officers and vehicles on a bridge as they attempt to access neighbouring the Jiangxi region.
The U.S. Navy is scrambling to contain its first at-sea coronavirus outbreak after more than two dozen sailors tested positive aboard the U.S.S. Theodore Roosevelt.
The organization said wet markets like the Huanan Seafood Wholesale Market in China, where the novel coronavirus is believe to have originated, are breeding grounds for deadly diseases.
Dr. Mohammad Madjid of UTHealth told Newsweek, "We know very well that COVID-19 affects the lung and can cause complications, but this study shows that the cardiovascular system is also affected."
But the study should be "very reassuring for mothers" as none of the babies were severely ill, one professor told Newsweek.
Anti-Chinese propaganda and economic punishments might feel cathartic in a frightening time, but lawmakers need to focus on what is actually in U.S. interests.