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New Delhi, Fevb 10: Of the countries most at risk of importing coronavirus cases, India ranks 17th, researchers have found on the basis of a mathematical model for the expected global spread of the virus that originated in China's Wuhan area in December 2019.

So far, India has reported three coronavirus positive cases -- all from Kerala.

Among the airports in India, the Indira Gandhi International Airport in New Delhi is most at risk, followed by airports in Mumbai, Kolkata, Bengaluru, Chennai, Hyderabad and Kochi, according to the model.

The new model for predicting global novel coronavirus cases has been developed by researchers from Humboldt University and Robert Koch Institute in Germany.

"The spread of the virus on an international scale is dominated by air travel," said the study.

"Wuhan, the seventh largest city in China with 11 million residents, was the relevant major domestic air transportation hub with many connecting international flights before the city was effectively quarantined on January 23, 2020, and the Wuhan airport was closed. By then the virus had already spread to other Chinese provinces as well as other countries," it added.

The researchers said that it is possible to estimate how likely it is that the virus spreads to other areas by looking at air travel passenger numbers.

"The busier a flight route, the more probable it is that an infected passenger travels this route. Using these probabilistic concepts, we calculate the relative import risk to other airports. When calculating the import risk, we also take into account connecting flights and travel routes that involve multiple destinations," said the study.

The top 10 countries and regions at risk of importing coronavirus cases are: Thailand, Japan, South Korea, Hong Kong, Taiwan, USA, Vietnam, Malaysia, Singapore and Cambodia, according to the model.

While Thailand's national import risk is 2.1%, it is 0.2% for India, found the research.

The foundation of the model is the worldwide air transportation network (WAN) that connects approximately 4,000 airports with more than 25,000 direct connections.

The model accounts for both, the current distribution of confirmed cases in mainland China as well as airport closures that were implemented as a mitigation strategy.

This network theoretic model is based on the concept of effective distance and is an extension of a model introduced in the 2013 paper "The Hidden Geometry of Complex, Network-Driven Contagion Phenomena" published in the journal Science.

The current outbreak of the 2019-nCoV virus started in Wuhan city, Hubei province, China. While the first cases were reported as early as December 8, 2019, the outbreak gained global attention on December 31, 2019, when the World Health Organization was alerted to "several cases of pneumonia" by an unknown virus.

The new virus was soon identified as a novel coronavirus and named 2019-nCOV. It belongs to the family of viruses that include the common cold and viruses such as SARS and MERS. On January 20, 2020, it was confirmed that the coronavirus can be transmitted between humans, greatly increasing the risk of a global spread.

The death toll due to the novel coronavirus outbreak in China has increased to 811 on Sunday, surpassing that of the Severe Acute Respiratory Syndrome (SARS) epidemic in 2003.

Although about 20 countries have confirmed cases, China has accounted for about 99 per cent of those infected. The first foreign victims of the virus both died on Saturday in Wuhan.

New Delhi, Feb 18: Delhi Transport Minister Kailash Gahlot is the richest minister in the AAP government, according to a report released by the Association for Democratic Reforms (ADR) on Monday.

In a statement, the NGO said, Delhi Election Watch and ADR have analysed the self-sworn affidavits of all the seven-party leaders including Chief Minister Arvind Kejriwal.

According to the statement, the minister with the lowest declared total assets is Gopal Rai with assets worth Rs 90.01 lakh.

"The minister with the highest declared total assets is Kailash Gahlot from Najafgarh constituency with assets worth Rs 46.07 crore," it stated.

The report by ADR comes on the day Kejriwal and his six ministers took charge after the formation of the new AAP government.

Chief Minister Kejriwal and his cabinet colleagues took charge of their respective offices on Monday and asserted that they would work to fulfil the promises made in the "guarantee card", released during the poll campaign, including reduction in pollution and expansion of metro network.

Members of his Cabinet are -- Manish Sisodia, Satyendar Jain, Rajendra Pal Gautam, Imran Hussain, Gopal Rai and Kailash Gahlot.

Mumbai, Jan 28: Flag carrier Air India has kept one of its 423-seater jumbo planes ready in Mumbai for the evacuation of Indian citizens from Wuhan in China in the wake of the coronavirus outbreak in that country, an official source said on Tuesday.

The airline is awaiting necessary approvals from the ministries of external affairs and health to operate the special flight, the source said. The health ministry's nod is required because the operating crew has to fly in a virus outbreak territory.

"We have kept a Boeing 747-400 ready in Mumbai to operate an evacuation flight to China whenever we get a go ahead from the government," the source said.

Some 250 Indians are to be evacuated.

At a meeting of top secretaries called by the cabinet secretary on Monday, the government decided to be prepared for possible evacuation of Indian nationals in Wuhan.

Accordingly, Ministry of External Affairs will make a request to the Chinese authorities for evacuation of Indian nationals, mostly students, stuck in Wuhan city. The Ministry of Civil Aviation and Ministry of Health will make arrangements for transport and quarantine facilities respectively, an official release said on Monday.

Wuhan along 12 other cities have been completely sealed by the Chinese authorities to stop the virus from spreading. The death toll climbed to 80 with 2,744 confirmed cases.