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Reopening is not going smoothly in some parts of the country. An ice cream shop that tried to open its doors with limited capacity in Cape Cod faced so much harassment that one employee quit. The owner said his workers heard language from customers that “you wouldn't even say in a men's locker room.” In Colorado, a restaurant opened illegally with no social distancing in place. Customers without masks packed the restaurant, and residents are fearful that it could have worsened Colorado's outbreak. (Where does your state stand? Catch up on the orders in each one.)

In Florida, where the governor was extremely hesitant to shut down in the first place, Ron DeSantis (R) is doing a sort of victory lap as his state reopens, saying that the worst-case scenario proved to be untrue. But DeSantis has been accused of suppressing information and purposefully undercounting deaths. With untold thousands infected, DeSantis — like the other governors beginning to restart their states — is taking a risk not just with his own political future but with the lives of his constituents.

To halt the spread of covid-19 as states reopen, we need a network of contact tracers — people who are trained to track and notify possibly infected individuals and map their exposures to others. “Contact tracers are … part detective, part therapist and part social worker,” said one epidemiologist. To address the need, the Johns Hopkins Bloomberg School of Public Health designed an online course. Here's how you can take it and help fight the spread.

After two people tested positive at the White House in recent days, most officials there will be asked to wear masks while they are in public spaces, though the new policy won't apply to President Trump, nor to people while they are working in offices. Previously, most senior officials had not worn masks or face coverings in the West Wing, even though the Centers for Disease Control and Prevention has recommended face coverings for all people while in public. “It is scary to go to work,” White House economic adviser Kevin Hassett said Sunday on CBS.

Doctors continue to discover new ways covid-19 attacks the body, and for some, it looks nothing like what you'd read on the CDC website. Deborah Coughlin had none of the typical symptoms; she went to the hospital with vomiting and diarrhea. “You would have thought it was a stomach virus,” her daughter said. But her blood oxygen plummeted and she's now on a ventilator in critical condition. Here's how doctors are learning to treat the new disease, which is far more unpredictable than a simple respiratory virus.

When the coronavirus stalled society, these three families decided to lock down together, keeping their adjacent homes open to one another while remaining socially distant from everyone else. They share home schooling, child care and other duties for their collective five children. Read how the families are growing close despite an outbreak that has kept us so far apart.

Other important news

The Trump administration plans to issue a warning that hackers tied to the Chinese government are attempting to steal information from researchers working to develop a coronavirus vaccine.

Still waiting for your stimulus check? You have until 12 p.m. Wednesday to give the IRS your bank information.

Adult children are paying the price to keep their aging parents at home as nursing homes have become risky hot spots for covid-19.

Coronavirus has been devastating to the Navajo Nation, and help in the complex fight has been slow.

Live updates and more

Track deaths and confirmed cases in the United States and across the world.

Where states are reopening and what the rules are in each one.

Post reporters across the world are publishing live dispatches 24 hours a day.

Read the latest about the cases and impact in the D.C. area.

Submit a question and The Post may answer it in a future story, live chat or newsletter.

Your questions, answered

“Do temperature checks reliably identify people with covid-19? What if they're asymptomatic?” — Noorillah in California

“When will you write about ‘wartime profiteering?’ It's outrageous how the supply lines are profiting from the need for PPE and other equipment.” — Jay in Oregon

These two questions caught our attention in recent days, and they're surprisingly related.

Here's the thing about temperature checks: Most people who have covid-19 don't actually have fevers, and as many as 25 percent of infected people don’t show any symptoms at all, according to the CDC. Between those two stats, it's likely that screening for high temperatures will overlook more than half of those infected, one study suggested.

But that hasn't stopped companies like RedSpeed USA, Athena Security and Feevr from pitching high-tech “fever detection” systems.

Last month, RedSpeed began advertising a “fever detector” that measures the heat on a person’s skin to determine whether they are ill, describing it as fast and accurate and using “groundbreaking technology [to] identify symptoms of illness.”

Georgia’s Gwinnett County quickly approved an emergency purchase of four RedSpeed scanners for county buildings. And it paid a high price: $30,000 per scanner, while the going rate from the industry leader, Oregon-based FLIR Systems, ranges from $5,000 to $15,000.

The scanners aren't made for medical use, despite the nationwide rush for them. FLIR Systems strongly cautions buyers to understand how the systems are meant to be used.

While the scanners can sense elevated skin temperatures, they aren’t precise enough to tell whether someone has a fever or something else — the warmth of a person’s skin is often quite different from their core body heat. People with heavier builds, health conditions or hot flashes can trigger the system’s alarms; so, too, can anyone just walking in from a hot car or parking lot.

Today's answer came from reporting by Drew Harwell. Read more details in his story: Thermal scanners are the latest technology being deployed to detect the coronavirus. But they don’t really work.

Today’s top reads

Find more stories, analysis and op-eds about the outbreak on our coronavirus page, including:

Covid-19 school closings may spur childhood obesity, experts warn
Your quarantined pet may be acting odd. Here’s how to help.
Pregnant women are urged to avoid stress. What happens when a pandemic makes that impossible?