Instead of helping on the frontlines, she has been under self-quarantine at home for weeks, after a chest scan on January 26 revealed that she had a suspected case of the novel Coronavirus.
Zhu was told to wait for a nucleic acid test that would provide the final verdict, but it never came.
"Right now, it's really a problem. Our hospital already has more than 100 people who are quarantined at home," she told CNN over the phone. An additional 30 medical workers have been confirmed to have the virus, she said.
"If the tests are fine, we can go back to work. I actually don't have any symptoms, there's just a slight problem with my CT scan, it seems there's a bit of infection," she said.
Zhu estimates that of the 500 medical staff at the hospital, more than 130 may have been stricken by the virus, which has so far infected more than 60,000 globally. She declined to publicize the name of her hospital and asked to use a pseudonym as she was not authorized to speak to the media.
The nurse, who had been under self-quarantine at home since being infected last month, was finally admitted into the hospital she works at for treatment on Tuesday.
"The (in-patient) floor I live on is basically filled with colleagues from my hospital," she wrote in a post on Wednesday. "These are mostly double or triple rooms, with my colleagues' names and bed numbers clearly written in black and white on the doors."
Every time fellow medics came to check on her, she said, she would hold her breath. "I'm afraid the virus inside my body will come out and infect these colleagues who are still standing fast on the frontline," she wrote.
On Friday, it was revealed that 1,716 healthcare workers nationwide had been infected by the virus, six of whom had died, according to China's National Health Commission (NHC). Nearly 90% (87.5%) of those medics came from Hubei province, of which Wuhan is the capital.