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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.

Thiruvananthapuram, Jan 27: Kerala Chief Minister Pinarayi Vijayan on Monday urged Prime Minister Narendra Modi to arrange for airlifting the Indians stranded in Wuhan province of China, the epicentre of coronavirus, saying the ground situation there has further worsened.

In a letter to Mr. Modi, he said since the situation in Wuhan was grave, it would be appropriate to operate a special flight to Wuhan or a nearby functional airport and airlift Indian nationals stranded there.

Mr. Vijayan also wanted the Prime Minister to give necessary instructions to the Indian Embassy in China to act pro-actively and provide necessary assistance and reassurance to Indians, including Keralites, stranded in Wuhan and Yichang.

The Chief Minister offered assistance of medical professionals from the State in case of evacuation of the Indians from Wuhan.

Chinese health authorities have announced the death toll due to coronavirus has sharply increased to 80 with 2,744 confirmed cases.

The confirmed cases of pneumonia caused by the novel coronavirus officially described as 2019-nCoV included 461 patients who are in critical condition.

Washington DC, Feb 7: United States on Thursday asked all countries to speak out against mistreatment of Muslims living in China especially in Xinjiang region by Chinese authorities.

Alice G. Wells, Principal Deputy Assistant Secretary for the Bureau of South and Central Asian Affairs, while talking to reporters appreciated the steps taken by Central Asian states to ensure that no ethnic Kazakh, Uighur, Kyrgyz is refouled to China and that the human rights of individuals who reach Central Asia are observed.

"As a matter of principle we urge all countries, not just Central Asian countries, to speak out against human rights abuses that are evident against Muslims in all of China but certainly in Xinjiang. And the countries of Central Asia, several of the countries of Central Asia have deep first-hand knowledge of those abuses given the direct impact it has on their own populations who have loved ones, family members, that are swept up in these detention centers," Wells said.

"We appreciate steps by Central Asian states to ensure that no ethnic Kazakh, Uighur, Kyrgyz is refouled to China, that the human rights of individuals who reach Central Asia are observed. And we also appreciate I think what countries like Kazakhstan can do to promote the free and safe travel of compatriots, ethnic compatriots across the border," she added.

China has been accused of oppressing the Uighurs by sending them to mass detention camps, interfering in their religious activities and sending the community to undergo some form of forceful re-education or indoctrination. However, Pakistan has stayed mum over this issue.

As many as 1 million people, or about 7 per cent of Xinjiang's Muslim population, have been incarcerated in a sprawling network of "political re-education" camps, according to US and UN studies.

In 2018, the New York-based Human Rights Watch released a report accusing Beijing of a "systematic campaign of human rights violations" against Uighur Muslims in Xinjiang.

Beijing says its camps in Xinjiang are "vocational training centres."

Last year, several documents leaked revealed details about Beijing's fears about religious extremism and its wholesale crackdown on Uighurs.

The US had called on the Chinese government to "immediately release all of those who are arbitrarily detained and to end its draconian policies that have terrorised its own citizens in Xinjiang."