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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, June 13: A quarantine notice pasted outside former Prime Minister Manmohan Singh’s 3, Motilal Nehru Place residence has raised speculations among media and political circles.

According to reports, the daughter of a domestic help who works at Singh’s residence has tested positive. She and her family, who live in the servant quarters, have been quarantined.

Singh, who has not been keeping well for some time, is slowly getting active. Congress leaders said the former Prime Minister attended a meeting of the party’s consultative committee on Thursday through video conference.

Jun 19: Ten Indian Army soldiers including four officers were released by the China’s People’s Liberation Army (PLA) on Friday capping three days of hard negotiations that followed the bloody battle at the eastern Ladakh’s Galwan valley on Monday.

The 10 jawans returned around 5.30 PM on Friday to Patrol Point 14 (PP-14) after Indian team leader Major Gen. Abhijit Bapat, the commanding officer of the Third Div made it clear to the Chinese that there couldn’t be any progress in the disengagement talks unless the soldiers were returned safely.

Asked to comment on the release of Indian soldiers, the Indian Army maintained silence. The force released a brief statement on Thursday stating that all its men were accounted for.

However, the extent of the brutal clash can be gauged from the fact that 76 Indian Army soldiers are still in the hospital out of which 58 soldiers have “minor injuries” and “should be back on duty within a week”, according to Army sources.

Return of the Indian soldiers has been the main point of negotiations for the last two days. The situation is now calmer at areas near PP-14 in the Galwan valley after the return of Indian soldiers even though large numbers of troops from both sides are still present in the area.

Meanwhile analysis of satellite images has revealed a large presence of Chinese troops in the northern banks of Pangong Tso, a disputed territory for years.

“In the past month, Chinese forces have become an overwhelming majority in the disputed areas (on the north bank of the 135 km long lake). Significant positions have been constructed between Fingers 4 and 5, including around 500 structures, fortified trenches and a new boat shed over 20 km further forward than previously. More structures appear to be under construction,” says a report published in the Strategist, the journal of the Australian Strategic Policy Institute.

“The scale and provocative nature of these new Chinese outposts is hard to overstate: 53 different forward positions have been built, including 19 that sit exactly on the ridge line separating Indian and Chinese patrols,” says the report, accompanied by satellite images showing overwhelming PLA presence.

The June 6 Corps Commander level meeting between the Indian and PLA armies did not result in a solution to the contentious muscle flexing by the Chinese on the shores of the Pangong lake. The meeting ended with the conclusion that more Lt Gen level talks between the two armies were needed to resolve such issues.