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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, Mar 29: The battle against coronavirus is a tough one and it required harsh decisions to keep India safe, said Prime Minister Narendra Modi in his first Mann Ki Baat after the 21-day lockdown was imposed in the wake of COVID-19 outbreak.
"The battle against COVID-19 is a tough one and it did require such harsh decisions. It is important to keep the people of India safe. A disease must be dealt with at the very beginning as delay makes it incurable," said Prime Minister Modi.
He said that as the coronavirus has put the entire world in lockdown, so "India is doing the same."
"It is a challenge before everyone, science and knowledge, poor and rich, powerful and weak. It is neither restricted to a nation nor region or particular weather. This virus is bent upon killing human beings, eliminating them. Hence all of us, the entire humanity, must unite and resolve to eliminate it," he added.
Addressing the 63rd edition of his monthly radio programme 'Mann Ki Baat', the Prime Minister had sought forgiveness from all countrymen, and especially the poor, for the nationwide lockdown in the country in the view of the novel coronavirus.
During his address to the nation on March 24, the Prime Minister had announced a 21-day nationwide lockdown to contain the spread of the deadly virus. 

With the beginning of Ramzan just about 10 days away, Maulana Khalid Rashid Firangi Mahali, the chairperson of the Islamic Centre of India and the Imam of Aishbagh Eidgah has issued an advisory to people on how to observe Ramzan during the lockdown.

In his appeal, the Sunni cleric, who is a member of the All India Muslim Personal Law Board (AIMPLB), has urged people that the holy month of Ramzan is likely to begin from April 25. The lockdown may also be extended beyond April 14.

"In this case, it is advised that people observe roza (fast) and do iftar (meal to break the fast) in the evenings at their homes. There should be no congregational prayers in the mosque but only at homes. Only those who stay or are staying at a mosque should pray there and that too while maintaining adequate social distance," said Maulana Khalid Rashid Firangi Mahali in a video message.

The cleric, in the 12-point advisory, has asked people to fast as is mandatory in Islam and to pray for the end of the pandemic, during the month of worship.

The advisory says that those who used to arrange for iftar of poor and needy persons at the mosque, should continue to do so this year as well but the food should be distributed to the needy.

"Those who conducted Iftar parties in Ramzan should give the money kept for it in charity. Not more than five people should be present at any time at a mosque," the cleric added.

Earlier for April 8 and April 9, both Shia and Sunni clerics had appealed to the people to stay indoors and pray on the occasion of Shab-e-Baraat, respectively. To ensure full compliance of the lockdown, the gates of several graveyards in the city were locked up by the caretakers since traditionally Muslims visit graves of their ancestors on Shab-e-Baraat--the night of Allah's forgiveness, to pray for their ancestors.