“What we don’t know is how strong this protection is and how long it will last,” she said at a press conference at the organization’s headquarters in Geneva. “So there are a number of studies going on that try to answer these questions. ”
Dr. Mike Ryan, executive director of the WHO health emergencies program, also said there was not enough data to know if this particular coronavirus could cause re-infection in people who have antibodies.
“We know with other coronaviruses that this is the case and there is data which suggests that immunity will decrease over time but which is not fully known at this stage,” he said.
This is a developing story. Check back here for updates.