As doctors, nurses and other health-care professionals face an unrelenting flow of patients through their hospitals, they’ve taken to social media to share their experiences. The raw emotions and visceral descriptions of what they are enduring comes through in countless posts on Twitter , Facebook , Instagram and other platforms.

Many call the fight against the new coronavirus unlike any other health crisis they have faced in their careers. In the words of one doctor, it is “unprecedented and dire.” Another wrote on Twitter, “I survived Ebola. I fear #Covid-19.”

Amid the alarm, doctors and nurses have also recounted extraordinary efforts among their colleagues to pull together and find creative ways to care for the sick under difficult circumstances.

Some medical professionals have turned to the internet to voice frustrations with the government response to the pandemic, highlighting shortages of critical supplies and protective gear, and calling on policy makers to take speedier and more drastic action.

The Wall Street Journal is gathering and sharing some of those dispatches here, lightly edited for clarity, to show how U.S. health workers are directly addressing the public about the crisis.