Mumbai-bound Jet Airways flight aborts take-off at Riyadh Airport, departs runway

Riyadh, Mar 6: Saudi Arabia on Thursday emptied Islam's holiest site for sterilisation over fears of the new coronavirus, an unprecedented shutdown state media said will last while the year-round Umrah pilgrimage is suspended.

The kingdom halted the pilgrimage for its own citizens and residents on Wednesday, on top of restrictions announced last week on foreign pilgrims to stop the disease from spreading.

State television relayed images of an empty white-tiled area surrounding the Kaaba -- a large black cube structure inside Mecca's Grand Mosque -- which is usually packed with tens of thousands of pilgrims.

As a "precautionary measure", the area will remain closed as long as the umrah suspension lasts but prayers will be allowed inside the mosque, state-run Saudi Press Agency cited a mosque official as saying.

Additionally, the Grand Mosque and the Prophet's Mosque in the city of Medina will be closed an hour after the evening "Isha" prayer and will reopen an hour before the dawn "Fajr" prayer to allow cleaning and sterilisation, the official added.

A group of cleaners was seen scrubbing and mopping the tiles around the Kaaba, a structure draped in gold-embroidered gold cloth towards which Muslims around the world pray.

A Saudi official told news agency the decision to close the area was "unprecedented".

On Wednesday, Saudi Arabia suspended the umrah for its own citizens and residents over fears of the coronavirus spreading to Islam's holiest cities.

The move came after authorities last week suspended visas for the umrah and barred citizens from the six-nation Gulf Cooperation Council from entering Mecca and Medina.

Saudi Arabia on Thursday declared three new coronavirus cases, bringing the total number of reported infections to five.

The umrah, which refers to the Islamic pilgrimage to Mecca that can be undertaken at any time of year, attracts millions of Muslims from across the globe annually.

The decision to suspend the umrah mirrors a precautionary approach across the Gulf to cancel mass gatherings from concerts to sporting events.

It comes ahead of the holy fasting month of Ramadan starting in late April, which is a favoured period for pilgrimage.

It is unclear how the coronavirus will affect the hajj, due to start in late July.

Some 2.5 million faithful travelled to Saudi Arabia from across the world in 2019 to take part in the hajj, which is one of the five pillars of Islam as Muslim obligations are known.

The event is a massive logistical challenge for Saudi authorities, with colossal crowds cramming into relatively small holy sites, making attendees vulnerable to contagion.

Already reeling from slumping oil prices, the kingdom risks losing billions of dollars annually from religious tourism as it tightens access to the sites.

Feb 22: A 20-year-old Chinese woman from Wuhan, the epicentre of the coronavirus outbreak, travelled 400 miles(675 km) north to Anyang where she infected five relatives, without ever showing signs of infection, Chinese scientists reported on Friday, offering new evidence that the virus can be spread asymptomatically.

The case study, published in the Journal of the American Medical Association, offered clues about how the coronavirus is spreading, and suggested why it may be difficult to stop.

"Scientists have been asking if you can have this infection and not be ill? The answer is apparently, yes," said Dr. William Schaffner, an infectious disease expert at Vanderbilt University Medical Center, who was not involved in the study.

China has reported a total of 75,567 cases of the virus known as COVID-19 to the World Health Organization (WHO) including 2,239 deaths, and the virus has already spread to 26 countries and territories outside of mainland China.

Researchers have reported sporadic accounts of individuals without any symptoms spreading the virus. What's different in this study is that it offers a natural lab experiment of sorts, Schaffner said.

"You had this patient from Wuhan where the virus is, travelling to where the virus wasn't. She remained asymptomatic and infected a bunch of family members and you had a group of physicians who immediately seized on the moment and tested everyone."

According to the report by Dr Meiyun Wang of the People's Hospital of Zhengzhou University and colleagues, the woman travelled from Wuhan to Anyang on Jan. 10 and visited several relatives. When they started getting sick, doctors isolated the woman and tested her for coronavirus. Initially, the young woman tested negative for the virus, but a follow-up test was positive.

All five of her relatives developed COVID-19 pneumonia, but as of Feb. 11, the young woman still had not developed any symptoms, her chest CT remained normal and she had no fever, stomach or respiratory symptoms, such as cough or sore throat.

Scientists in the study said if the findings are replicated, "the prevention of COVID-19 infection could prove challenging."

Key questions now, Schaffner said, are how often does this kind of transmission occur and when during the asymptomatic period does a person test positive for the virus.