Since coronavirus first emerged in China, as of February 27 it has killed 2,811 people worldwide, far surpassing the death toll of the SARS outbreak in 2002. One case in Japan has led to questions about the recovery rate from COVID-19.
Can you get coronavirus twice?
Japan is one of the countries worst hit by the coronavirus outbreak with 207 confirmed cases.
In Osaka, a woman in her 40s has tested positive for COVID-19 for a second time.
The tour bus operator was first diagnosed with coronavirus in late January and was discharged from hospital on February 1.
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But she has been reinfected leading to fears many of those who have recovered could be diagnosed with the potentially fatal virus again.
Philip Tierno Jr, professor of microbiology and pathology at New York University, said: “Once you have the infection, it could remain dormant and with minimal symptoms.
“And then you can get an exacerbation if it finds its way into the lungs.”
Recovery rates from COVID-19 had boomed in the last few weeks with more than 33,000 people given the all-clear.
“It won’t be easy, there will be times when it feels very uncomfortable for people and sometimes really interrupting their daily lives but we’ve all got to work together in this.
“It’s not a political issue, it’s not even an issue between different countries. It’s really an issue for the whole world.”
The WHO had been deciding on whether to label the COVID-19 outbreak as a pandemic.
A pandemic is a disease that is spreading in multiple countries around the world at the same time.
What are the symptoms of COVID-19?
Common signs of infection include respiratory symptoms, fever, cough, shortness of breath and breathing difficulties.
In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome, kidney failure and even death.
Standard recommendations to prevent infection spread include regular hand washing, covering mouth and nose when coughing and sneezing, thoroughly cooking meat and eggs.
Avoid close contact with anyone showing symptoms of respiratory illness such as coughing and sneezing.