The news comes while debate revs up on whether all Americans should be wearing a mask.
One of the deaths was a 6-week old in Connecticut, Gov. Ned Lamont said.
A quarter of people in US who are sick have no symptoms
In the US, an estimated 25% of coronavirus carriers have no symptoms, said the director of the Centers for Disease Control and Prevention.
“We’re not there yet, but I think we’re close to coming to some determination,” Fauci said.
The organization is “continuing to study the evidence” about whether the general public should use masks during the coronavirus pandemic, WHO Director-General Tedros Adhanom Ghebreyesus said during a media briefing in Geneva, Switzerland, on Wednesday.
The WHO recommends the masks for sick people and caregivers, he said.
“This is still a very new virus, and we are learning all the time. As the pandemic evolves, so does the evidence, and so does our advice,” he said.
But this week, new information about asymptomatic spread could change public guidelines, Adams said.
A major argument against the widespread use of masks is that health care workers don’t have enough.
“We have a massive global shortage,” Dr. Mike Ryan, executive director of the WHO health emergencies program, said. “Right now, the people most at risk from this virus are frontline health workers who are exposed to the virus every second of every day. The thought of them not having masks is horrific.”
Evidence shows social distancing helps
Nearly 90% of the US population now lives in areas that have stay-at-home orders, according to a CNN count based on various state, county and city orders.
Florida, with 21 million residents and a large senior citizen population, joined the list Wednesday. Gov. Ron DeSantis issued an executive order directing seniors and people with underlying medical conditions to stay home. All Floridians must limit their movements, he wrote. The order takes effect early Friday.
Governors in Georgia and Mississippi also issued orders Wednesday.
While 12 states have not issued stay-at-home mandates, President Donald Trump said he doesn’t think a national order is necessary.
“States are different and I understand that the governor of Florida, great governor, Ron DeSantis, issued one today and that’s good, that’s great. But there are some states that are different. There are some states that don’t have much of a problem,” Trump said at a news conference on the US coronavirus response.
Health officials say social distancing efforts seem to be paying off, including in Washington state’s King County — the country’s first coronavirus epicenter.
“We are looking at reductions in person-to-person contact that have progressively improved and have led us to a point where we are making a very positive impact,” said Dr. Jeff Duchin, the public health officer for Seattle and King County.
In hard-hit New York, a CNN analysis shows the day-to-day average of case increases in the past week was 17% — a major decrease from 58% for the previous seven-day period.
And a large-scale study found that early interventions, such as social distancing and severe restrictions on people’s movement, have already saved tens of thousands of lives across Europe.
Scientists at imperial College London studied interventions in 11 European countries and concluded that they “have together had a substantial impact on transmission.”
The researchers estimate as of March 31, “interventions across all 11 countries will have averted 59,000 deaths.”
Equipment still in short supply
The calls for help with vital equipment for treating patients continue. One hospital CEO even went to Twitter on Wednesday to ask Tesla head Elon Musk whether he could supply ventilators.
“We are down to one critical care ventilator,” the message from the account of Mark Geller said about Montefiore Nyack Hospital.
Hospital spokeswoman Lauren Malone told CNN in an email that Geller “decided it was worth sending a message” to the Tesla head.
“We have not heard back from Mr. Musk, but perhaps we will be lucky enough to receive ventilators,” Malone said.
The hospital was able to obtain 10 ventilators from another source, Malone said.
CNN has reached out to Tesla for comment.
Colorado Gov. Jared Polis said the state has been talking to factory owners from China and other countries, trying to buy equipment.
“We know that not having gotten nearly enough from the federal government, we have really taken it upon ourselves as a state to engage in the purchasing of medical equipment,” he said.
Polis said the state doesn’t have the hospital beds, ICU units, ventilators and personal protection equipment to treat all potential patients. He said they have ordered some supplies, but, for instance, need to make sure the masks they bought aren’t counterfeits.
CORRECTION: This story has been updated with the correct percentage of Americans under a stay-at-home order.
CNN’s Sonia Moghe, Raja Razek, Jacqueline Howard, Jamiel Lynch, Allie Malloy, Joe Sutton, Dave Alsup and Jason Hoffman contributed to this report.