Experts fear we are facing a "crashing wave" of neuropsychiatric conditions linked to COVID-19.
Accurately calculating the figure could help experts decide how and when to ease social distancing measures.
"WHO is the only international organization capable of leading the effort to control this virus," Carter said.
"International cooperation among governments and the scientific and health care communities is essential to halt the spread of the disease," the ANA's president said.
Despite funding cuts from America, the World Health Organization has praised China's response to the coronavirus outbreak and plans to continue its global work.
"Zhuhai's ban on dog and cat meat eating is thrilling news for all those in China and around the world who have campaigned for so long to end this brutal trade," said Wendy Higgins from HSI.
Some European countries badly affected by the COVID-19 outbreak have made moves to lift restrictions.
The report alleges President Xi Jinping and senior officials delayed informing the country about the severity of the coronavirus outbreak for six days, allowing millions to travel.
President Donald Trump said Tuesday the U.S. would temporarily freeze its contributions to the WHO while investigating alleged mismanagement of the coronavirus pandemic.
Opening windows and letting natural light into buildings, including our homes, may prevent the spread of the coronavirus
Trump is halting U.S. funding of WHO after previous administrations' "benign neglect" policy allowed Beijing to mislead the organization, with deadly consequences.
The president announced that the U.S. would suspend funding for the U.N.-chartered organization while the Trump administration looked into whether it had "covered up" China's mistakes in handling the outbreak.
Experts explained to Newsweek why this doesn't jeopardize efforts to create a vaccine to prevent COVID-19.
"Right now, we don't have a full picture of what immunity looks like. Until we do, we can't give a complete answer," Dr. Maria Van Kekhove, WHO's leading COVID-19 scientist, said.
Common symptoms of the COVID-19 disease include fever, cough, and shortness of breath.
There is currently no vaccine to prevent COVID-19.
Almost 120,000 people have died of COVID-19 worldwide, according to Johns Hopkins University.
There are currently no specific drugs to prevent or treat the new coronavirus.
More than half a million people in the U.S. have been diagnosed with COVID-19, according to Johns Hopkins University.
Experts hope antibody tests will bring mild and asymptomatic coronavirus cases into data compiled on the disease.
Trump accused the WHO of being too "China centric" on Tuesday, and suggested the organization had mishandled the COVID-19 outbreak.
Hydroxychloroquine and its analog chloroquine has been used experimentally on coronavirus patients as there is currently no specific drug or vaccine against the disease.
The new coronavirus has infected more than 1.3 million people according to Johns Hopkins University.
"They've been deceptive, they've been slow, and they've been Chinese apologists. I don't think they're a good investment under the current leadership for the United States."
There are currently no specific drugs or vaccines against COVID-19.
Over a quarter of a million people are known to have recovered from COVID-19 since the pandemic started last year.
The study comes as health officials consider the pros and cons of wearing masks amid the COVID-19 pandemic.