"While the degree of contact you may have had with the case at the summit is unlikely to have been significant, we are taking a precautionary approach and informing you", the letter said, as reported by the Financial Times. Sorry for any inconvenience'.
Reports on social media suggested the person thought they may have coronavirus. However, he expected that status to change and urged countries to strike hard against the virus before the "window of opportunity" closed and countries with weak health systems were impacted.
Meanwhile, a Channel 4 employee is among those being tested for coronavirus after feeling unwell following a trip to Asia.
Staff at the hospital said they were anxious the patient's behaviour could have led to some of them, and some of the patients in the A&E at the time, catching coronavirus.
The news comes after it was confirmed that the quarantine of 83 people being held in Arrowe Park Hospital in Wirral, Merseyside would be lifted amid reports that all of the individuals isolated have tested negative for coronavirus.
Cases of the virus spreading from one person to another outside of China remain limited so the risk COVID-19, the official name for the virus, poses to the public is low.
The corporate mentioned it has briefly suspended the driving force who took her to the hospital "out of an abundance of warning".
The victim is a woman and is on her way to hospital, The Guardian reported. "Not a 'How are you?' or 'What's going on?' 'How's the baby?' We've just been told to stay indoors and call 111 if our symptoms get worse".
Around 250 delegates who attended a transport conference at London's QEII Centre have been contacted by health officials after it emerged one of the attendees has subsequently been diagnosed with coronavirus.
As Public Health England investigates the patient's movements, Dr Nathalie MacDermott from the National Institute for Health Research said London commuters should continue to go about their business as usual.