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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, Jun 28: With 19,906 new cases, highest single-day spike so far, India's COVID-19 count touched 5,28,859 including 2,03,051 active cases, 3,09,713 cured/discharged/migrated, according to the Ministry of Health & Family Welfare.

410 deaths were reported in the last 24 hours and the cumulative toll reached 16,095 deaths.

Coronavirus cases in Maharashtra have climbed to 1,59,133 while Delhi's tally stands at 80,188.

2,31,095 samples were tested yesterday and the total number of samples tested up to 27 June is 82,27,802, according to the Indian Council of Medical Research (ICMR).

New Delhi, May 19: Former Union Minister P Chidambaram said that as the fourth phase of the nationwide lockdown amid the coronavirus scare began from Monday, his thoughts were with the people of Kashmir who were in a "terrible lockdown within a lockdown."

The senior Congress leader said that at least now, the people in the rest of India will understand that he dubbed the "enormity of the injustice" done to those who were detained in Kashmir and those still under detention" immediately before and after the abrogation of Article 370 of the Indian Constitution on August 5, 2019.

Chidambaram said that former Jammu and Kashmir Chief Minister Mehbooba Mufti was the "worst sufferer" of preventive detention and even courts had shirked their constitutional duty with respect to detainees.

"The worst sufferers are Mehbooba Mufti and her senior party colleagues who are still in custody in a locked-down state in a locked-down country. They are deprived of every human right," he said in a statement.

"I cannot believe that for nearly 10 months, the courts will shirk their constitutional duty to protect the human rights of citizens," he added.

The detention on Mehbooba Mufti under the Public Safety Act (PSA) had been extended for three more months on May 5. Booked under the stringent PSA, she was initially kept at the Hari Niwas guesthouse in Srinagar but later shifted to a Tourism Department hut in the Chashma Shahi area.

She was shifted to her Gupkar Road official residence on April 7.

Besides Mehbooba Mufti, two other former Chief Ministers -- Omar Abdullah and his father Farooq Abdullah -- were also detained under the PSA but later released.